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What are the solutions of this equation?
x ^ 2 - x - 56 = 0

Select All The Correct Answers What Are The Solutions Of This Equation X 2 X 56 0 class=

Sagot :

Medunno13
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Answer: x=-7 and x=8

Step-by-step explanation:

We need to find 2 numbers that multiply to make 56 and add up to make -1 (because of -x)

These would be 7 and 8, specifically +7 and -8

Therefore we factorise the quadratic to form (x+7)(x-8)=0

Now we know x=-7 and x=8

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