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anonymous
 4 years ago
What are the solutions of x^2 + 8x − 20 = 0? Show all work for full credit.
anonymous
 4 years ago
What are the solutions of x^2 + 8x − 20 = 0? Show all work for full credit.

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phi
 4 years ago
Best ResponseYou've already chosen the best response.0To solve x^2 + 8x − 20 = 0 I would factor it to find the factors: first, notice the 20, that means the two factors will be opposite signs second, the +8 (on the x term) means the larger factor is plus third, list the factors of 20 1,20 2,10 4,5 does any pair when subtracted give us +8? if so, that is the pair to use : (x2)(x+10)= 0 now solve for x: either x2=0 or x+10=0

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x^2+10x2x20=0 x(x+10)2(x+10)=0 (x+10)(x2)=0 either or x+10=0 x2=0 x=10 x=2
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