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7x(5x+3)-(25x^2+10x-7)
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7x(5x+3)-(25x^2+10x-7)

User Pioneer
by
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1 Answer

2 votes

Answer:


10x^2+11x+7

Explanation:

Given the expression:


7x(5x+3)-(25x^2+10x-7)

Use distributive property:


7x(5x+3)=7x\cdot 5x+7x\cdot 3=35x^2+21x\\ \\7x(5x+3)-(25x^2+10x-7)=35x^2+21x-(25x^2+10x-7)

Open brackets:


35x^2+21x-(25x^2+10x-7)=35x^2+21x-25x^2-10x+7

Combine the like terms:


35x^2+21x-25x^2-10x+7=(35x^2-25x^2)+(21x-10x)+7=10x^2+11x+7

User Alex Objelean
by
8.9k points
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