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Mathematics
Ruben Richard
10 October, 15:25
Factor 4x2 - 22x + 30
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Patience Barber
10 October, 17:17
0
2 (2x - 5) (x - 3)
Step-by-step explanation:
4x² - 22x + 30
First, factor out a 2:
2 (2x² - 11x + 15)
Use AC method to factor.
2 * 15 = 30
Factors of 30 that add up to - 11 are - 5 and - 6.
Divide by a and reduce: - 5/2, - 6/2 = - 3/1
The factors are 2x - 5 and x - 3.
2 (2x - 5) (x - 3)
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Declan Pruitt
10 October, 18:04
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Factor by grouping. For a polynomial of the form ax2+bx+c a x 2 + b x + c, rewrite the middle term as a sum of two terms whose product is a⋅c=2⋅15=30 a ⋅ c = 2 ⋅ 15 = 30 and whose sum is b=-11 b = - 11.
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