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Titan
Mathematics
3 January, 16:50
Find the quadratic equation for y=x^2+6x-7
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Jaxon
3 January, 17:14
0
x = - 1 or x = 7
Step-by-step explanation:
From my understanding, y will be zero and you have to find the value of x.
Step 1: Middle term break
y = x² + 6x - 7
x² + 6x - 7 = 0
x² - 7x + x - 7 = 0
Step 2: Solve
x (x-7) + 1 (x-7) = 0
(x+1) (x-7) = 0
x = - 1 or x = 7
Therefore, the value of x is either - 1 or 7.
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