5a(2-a)+6a(a-7)= 20x+5(x-2)²= 25y-y³= -4x²+8xy-4y²= 16 в² - - = 81 -y²+2y-5=...

Question

5a(2-a)+6a(a-7)= 20x+5(x-2)²= 25y-y³= -4x²+8xy-4y²= 16 в² - - = 81 -y²+2y-5= (3x+x²)²-x²(x-5) (x+5)+2x(8-3x²)=

Answer 1

Решеение во вложениии

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