Answer:
a) is x=0,-9
b) is x=3,±2
c) is x=5,−8
Step-by-step explanation:
a) 3x^2 +27x=0
1. Factor out the common term 3x
3x(x+9)=0
2. Solve for x
x=0,−9
Answer is x=0,-9
b) (x-3)(x+2)(3x-6)=0
1. Ask: When will (x-3)(x+2)(3x-6) equal zero?
When x-3=0, x+2=0 or 3x-6=0
Solve each of the 3 equations above
x=3,±2
Answer: x=3,±2
c) x(x-5)+8(x-5)=0
1. Factor out the common term x-5
(x−5)(x+8)=0
2.Solve for x
x=5,−8
Answer is x=5,−8
