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nexus9112 [7]
3 years ago
9

If using the method of completing the square to solve the quadratic equation, which number would have to be added to “complete t

he square”?
X^2+7x-4=0
Mathematics
1 answer:
Anna11 [10]3 years ago
6 0
The answer is 80 because you add then subtract
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Do everything in brackets first

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Next we will do exponents so we simplify 2^3 which is the same as 2×2×2 = 8

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