Question

Solve each equation by taking square roots.1) 100x² + 5 = 105

Answer 1

100x²+ 5 = 105

subtract 5 from both-side of the equation

x² + 5 - 5 = 105 - 5

x² = 100

Take the square root of both-side of the equation

√x² = √100

x = 10