Question

$7(x + 5) { }^{2} - 14(x + 5)$
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Answer 1

Hello !!

We need find the result of

7(x + 5)² - 14(x + 5).

7(x + 5)² - 14(x + 5)

7(x + 5)² - 14(x + 5) = 7[(x + 5)(x + 5)] - 14x - 70

7(x + 5)² - 14(x + 5) = 7[x² + 10x + 25] - 14x - 70

7(x + 5)² - 14(x + 5) = 7x² + 70x + 175 - 14x - 70

7(x + 5)² - 14(x + 5) = 7x² + 70x - 14x + 175 - 70

7(x + 5)² - 14(x + 5) = 7x² + 56x + 105

Final result :

7x² + 56x + 105

I hope I have collaborated and have a great day !