Question

Решите пожалуйста, с 1-5
Подаоуйстаааа((((​

Answer 1

$frac{6x times 7}{14b times 3} = frac{2x}{2b} = frac{x}{b}$

$8 {a}^{2} b {}^{4} times frac{ - 3a}{4b {}^{3} } = - frac{8a {}^{3}b {}^{4} times 3 }{4b {}^{3} } = - 6 {a}^{3} b$

$frac{a {}^{2} - ab}{b} times frac{b {}^{2} }{a} = frac{a(a - b) times {b}^{2} }{ab} = b(a - b) = ab - {b}^{2}$

$frac{a {}^{2}b - 4b {}^{3} }{3ab {}^{2} } times frac{a {}^{2}b }{a {}^{2} - 2ab } = frac{ {a}^{2} b {}^{2} ( a - 2b)(a + 2b) }{3a {}^{2} {b}^{2}(a - 2b) } = frac{a + 2b}{3}$

$frac{6 {}^{3} }{3 {}^{3} } = frac{(2 times 3) {}^{3} }{3 {}^{3} } = frac{2 {}^{3} times 3 {}^{3} }{ {3}^{3} } = 2 {}^{3} = 8$