shelby1290
  • shelby1290
Factor. a)2x^2+10x+8 b)3x^2+12x-63 c)2x^2-15x+7
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
a)2(x2+5x+4) 2(x+4)(x+1) b)3(x2+4x-21) 3(x+7)(x-3) c)2x2-15x+7 (2x-1)(x-7)
shelby1290
  • shelby1290
@CasidyCat how did you get those answers? Can you please show your work?
anonymous
  • anonymous
Sure! Although explaining one will do the rest. For the first one, you find a common factor between all of the coefficients which was 2. I divided 2 out of all the coefficients leaving me with x2+5x+4. To find the simplified form, you use 5 and 4. The two numbers after the x in the solution must add up to 5 and be factors of 4. 4*1=4 and 4+1=5 so the solution was 2(x+4)(x+1). Does this help??

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triciaal
  • triciaal
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triciaal
  • triciaal
Here are the general steps: what is the product of a* c? what are the factors of (a*c) that add up to b? pay attention to the signs rewrite b with the 2 terms regroup the original into 2 sets of 2 terms each and each group use the distributive property and rewrite with the common factor
triciaal
  • triciaal
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