výrazy
3 – vytýkání, roznásobení
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výrazy 3 vytýkání a roznásobení |
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1) roznásobte závorku |
2) vytkněte |
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4(3x – 5) = |
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8x – 6 = |
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x(3 – x) = |
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9x2 – 6x = |
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(2x – 4)7 = |
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24x – 16x2 = |
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8(x – 3) = |
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12x2 – 6x + 9 = |
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-3(2x – 1) = |
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17x – 34 = |
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3)
zjednodušte |
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3 – 2x + 4 + x = |
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6ab – 6a + 2ba – a = |
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b + 3 – 4b – 8 = |
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7x2y – 8xy2
+ x2y – xy2 = |
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x2 – 8 + 7x – x2
+ 2 = |
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-7 + x2 – 2x +
x2 + 2x – 2 = |
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7 – 3x + 5x – 2x2
= |
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5d – d + 1 – 8d + 2 – 3d = |
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8x – 7x2 – 10x
+ 2x2 = |
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7b – 3ab + a + 2ba – b + ab
= |
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4) roznásobte
závorky |
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(x – 5)(x +
1) = |
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(2x – 1)(3x + 2) = |
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(2 – x)(x + 4) = |
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(f – 5g)(g + f) = |
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(x – 3)(x – 2) = |
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(ab – 2)(a – b) = |
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(-2 + y)(4 – y) = |
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(k + 7)(m – 9) = |
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(2a + 1)(3a + 2) = |
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(w – 1)(3w – 3) = |
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(c + 5)(c + 7) = |
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(rs – t)(rt – s) = |
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(-3 – p)(2 – p) = |
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(uvw – 1)(uv – w) = |
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5)
rozložte na součin: |
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24m2n3
– 36mn2 = |
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12m3 – 9m2
– 18m4 = |
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15x4 – 45x5
= |
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x6 – x2
= |
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66a2b3
– 99a3b2 = |
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36q5 – 45q4
– 54q3 = |
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100c5 – 25c2
= |
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a2 – b2
+ 9a + 9b = |
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32x2y2
– 48x3y3 = |
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75e3 – 25e5
– 125e2 = |
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