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Solve x2 + 9x + 20 = 0.
A.x = 2, x = 10
B.x = −2, x = −10
C.x = −5, x = −4
D.x = 5, x = 4
 one year ago
 one year ago
Solve x2 + 9x + 20 = 0. A.x = 2, x = 10 B.x = −2, x = −10 C.x = −5, x = −4 D.x = 5, x = 4
 one year ago
 one year ago

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j814wongBest ResponseYou've already chosen the best response.1
x=5,x=4 \[x ^{x}+9x+20=20\] \[(x+4)(x+5)=0\] It's factoring question.
 one year ago

yummydumBest ResponseYou've already chosen the best response.0
factor the trinomial first :) its just like the problem we worked with first :)
 one year ago

yummydumBest ResponseYou've already chosen the best response.0
after you factor, set the two binomials equal to zero and solve for x :D
 one year ago
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