Question

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

Answer 1

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

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

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

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

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