Question

The root of the quadratic equation 3(x+3)^2=48
1,-7
1,7
-1,7
-1,-7​

Answer 1

Answer:

x=7

x=−1

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

3*(x-3)^2-(48)=0

Step by step solution :

STEP

1

:

Equation at the end of step 1

3 • (x - 3)2 - 48 = 0

STEP

2

:

2.1 Evaluate : (x-3)2 = x2-6x+9

STEP

3

:

Pulling out like terms

3.1 Pull out like factors :

3x2 - 18x - 21 = 3 • (x2 - 6x - 7)