Question

1. Solve the equation: 4x2 = 9

A. {3/2, -3/2}
B. {-2, -3}
C. no solution
D. {2/3, -2/3}
2. Solve the following equation: x2 + 14x + 49 = 0
Please use {a,b} form. a and b are your solutions.

Answer 1

4x² = 9
⇒ x² = 9/4
⇒ x = {3/2, -3/2}
A is the answer.

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x² + 14x + 49 = 0
x² + 2*7*x + 49 = 0
(x+7)² = 0
x = {-7, -7}


Hope it helps!