212,496 views
9 votes
9 votes
Solve by factoring: x2+3x-18=0

User Kkk
by
3.0k points

2 Answers

22 votes
22 votes
11:06 1 LTE Solutions Solving Steps 2 x + 3x-18 = 0 Rewrite the expression X + 6x-3x- 18 = 0 Factor the expressions xx (x + 6) - 3 (x + 6) = 0 Factor the expression ( x + 6) x (x- 3) = 0 Separate into possible cases X + 6 = 0 X-3 = 0
Solve the equations X = -6 X = 3 The equation has 2 solutions Solution

2 X + 6x-3x- 18 = 0 Factor the expressions xx (x + 6) -3 (x + 6) = 0 Factor the expression (x + 6) x (x-3) = 0 Separate into possible cases X + 6 = 0 X-3 = 0 Solve the equations X = -6 X = 3 The equation has 2 solutions Solution X4 = -6, x, = 3>
Solve by factoring: x2+3x-18=0-example-1
User Matt Jennings
by
3.0k points
12 votes
12 votes

Answer:

x^2 +3x- 18=0

x^2 +6x -3x - 18 =0

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

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

therefore, x= -6,3

User Pradnya Bolli
by
2.6k points