72 divided by negative 4

Mathematics

1 answer:

zavuch27 [327]3 years ago

5 0

The answer is -18. :3

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Complete the equation: x^2+8x + _=(_)^2

pentagon [3]

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x^2+8x+16=(x-4)^2

EXPLANATION:

(a+b)^2=a2+2.a.b+b2

we have to break the middle term in 2ab here a is x then 2xb=8x, => b=4, but value of a and b to get the required equation!

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