Find the number of real number solutions for the equation. x^2+9x+20=0 A.) Can't be determined by graph B.) 1 C.) 2 D.) 0

asked Jul 26, 2019 146k views

5 votes

Find the number of real number solutions for the equation. x^2+9x+20=0

A.) Can't be determined by graph
B.) 1
C.) 2
D.) 0

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3 votes

x^2+9x+20 = 0
factorises to (x+5)(x+4)=0
so x = -5 or -4
Therefore answer is C.) 2

Cmgerber answered Jul 31, 2019

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