Question

x²+6x-27=0

solve this equation​

Answer 1

Answer:

Use the sum-product pattern

Identify a, b and c in your equation and then find two numbers that when multiplied together equal c, and when added together equal b.

2+6−27=0

x^{2}+6x-27=0

2

Factor

Write your equation in factored form

(−3)(+9)=0

(x-3)(x+9)=0

3

Create two separate equations

Set each factor equal to zero

−3=0

x-3=0

+9=0

x+9=0

Solve

Rearrange and isolate the variable to find each solution

=3

x=3

=−9

Answer 2

Answer: x= -9 or x= 3

Step-by-step explanation:

x^2+6x-27=0

x^2+9x-3x-27=0

x(x+9)-3(x+9)=0

(x+9) (x-3)=0

x= -9   or  x= 3