Question

Solve the following equations by factor method:

(i) x2 + 3x =18
(B) 2x2 + 5x – 3 = 0​

Answer 1

Answer:

Step-by-step explanation:

i)  x²+3x-18 = 0

x² +6x - 3x - 18 =0

x(x+6)-3(x+6) = 0

(x-3)(x+6)=0

x = 3 or x = -6

i)  2x²+5x-3 = 0

2x² +6x -x - 3 =0

2x(x+3)-1(x+3) = 0

(2x-1)(x+3)=0

x = -3 or x = 1/2

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