Question

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

Answer 1

please help :)

Answer 2

x=-5,x=-4
\[x ^{x}+9x+20=20\]
\[(x+4)(x+5)=0\]

It's factoring question.

Answer 3

factor the trinomial first :) its just like the problem we worked with first :)

Answer 4

thank you @j814wong

Answer 5

Your welcome

Answer 6

after you factor, set the two binomials equal to zero and solve for x :D