Question

Пожалуйста, даю 40 баллов

Answer 1

• a) 5x²y²/z ÷ 2x³y²/z = 5x²y²/z ÷ z/2x³y² = 5/6 × 1/2x = 5/12x
• б) ab + 3b²/7 × a/b = a²+ 3ab/7
• в) 7(a² + b²)/8(a-b) ÷ 3a² + 3b²/(a - b)² = 7a - 7b/24

Answer 2

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