QUESTION IMAGE
Question
- 求x的值:$3(x + 2)^2 + 6 = 33$。
Step1: 移项化简常数项
$3(x+2)^2 = 33 - 6$
$3(x+2)^2 = 27$
Step2: 两边同除以3
$(x+2)^2 = \frac{27}{3}$
$(x+2)^2 = 9$
Step3: 开平方求解
$x+2 = \pm3$
Step4: 分情况计算x
当$x+2=3$时,$x=3-2=1$;
当$x+2=-3$时,$x=-3-2=-5$。
Snap & solve any problem in the app
Get step-by-step solutions on Sovi AI
Photo-based solutions with guided steps
Explore more problems and detailed explanations
$x=1$或$x=-5$