Simplify - 7x (4+7x) - 8 (2-4x)

Question

Mathematics

Conrad Buchanan

26 December, 10:16

Simplify - 7x (4+7x) - 8 (2-4x)

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Answers (2)

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Emery Stevens · Answer 1

Emery Stevens 26 December, 11:38

0

-28x-49x-16+32x

-77x-16+32x

-45x-16

Pranav Cervantes · Answer 2

8x-49^2-16

because - 7x (4+7x) is broken down to

-7x*4 = - 28x

and

-7x*7x = - 49x^2 the square root is because x*x = x^2

then you do the second part which is

-8 (2-4x) and again you break it down

-8*2=-16

-8*-4x=36x

so now you have

-28x-49x^2-16+36x

and when you simplify you get

8x-49^2-16