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Braedon Johnston
Mathematics
22 March, 11:59
Factorise x squared + 22x - 75
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1
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Konnor Carpenter
22 March, 12:28
0
(x + 25) (x - 3)
Step-by-step explanation:
Consider the factors of the constant term ( - 75) which sum to give the coefficient of the x - term ( + 22)
The factors are + 25 and - 3, since
25 * - 3 = - 75 and 25 - 3 = + 22, thus
x² + 22x - 75 = (x + 25) (x - 3) ← in factored form
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