Answer:
z = -3/2 , z = -1/2
Step-by-step explanation:
Given:
7z² + 8z + 3 = 3z²
Find:
Values of z
Computation:
7z² + 8z + 3 = 3z²
7z² + 8z + 3 - 3z² = 0
4z²+ 8z + 3 = 0
4z²+ (6+2)z + 3 = 0
4z²+ 6z + 2z + 3 = 0
2z(2z + 3) + 1(2z + 3) = 0
(2z + 3)(2z + 1) = 0
So,
z = -3/2 , z = -1/2
