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Snuffles
Mathematics
22 April, 02:34
X2 - 15x + 56
factor
+5
Answers (
1
)
Madisyn Hester
22 April, 02:42
0
(x - 7) (x - 8)
Step-by-step explanation:
To factorise the quadratic
Consider the factors of the constant term ( + 56) which sum to give the coefficient of the x - term ( - 15)
The factors are - 7 and - 8, since
- 7 * - 8 = + 56 and - 7 - 8 = - 15, hence
x² - 15x + 56 = (x - 7) (x - 8)
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