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Karla Branch
Mathematics
23 May, 18:22
Rewrite y = x2 + x - 20 in factorized form.
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Karli Wood
23 May, 18:33
0
y = (x + 5) (x - 4)
Step-by-step explanation:
Given
y = x² + x - 20
Consider the factors of the constant term ( - 20) which sum to give the coefficient of the x - term ( + 1)
The factors are + 5 and - 4, since
5 * - 4 = - 20 and 5 - 4 = + 1, thus
x² + x - 20 = (x + 5) (x - 4)
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Beck
23 May, 18:49
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y = x2 + x - 20 factors into
y = (x + 5) * (x - 4)
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