3. Solve for the variable of the following quadratic equations: A. By Extracting the square roots
1) 3x2 - 147 = 0
2) (x - 4)2 = 169
B. By Factoring
1) x2 - 10x + 25 = 0
2) (x + 3)2 = 25
C. By Completing the square
1) t? + 10t + 9 = 0
2) 4x2 - 32x = - 28
D. By using the quadratic formula
1) 2x2 + 7x + 9 = 0
2) 2x2 + 4x = 3
1) 3x2 - 147 = 0
2) (x - 4)2 = 169
B. By Factoring
1) x2 - 10x + 25 = 0
2) (x + 3)2 = 25
C. By Completing the square
1) t? + 10t + 9 = 0
2) 4x2 - 32x = - 28
D. By using the quadratic formula
1) 2x2 + 7x + 9 = 0
2) 2x2 + 4x = 3
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