Solving Word Problems Quadratic Equations by Taking Square Roots

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

The graph of a quadratic function is called

• a line

• a hyperbola

• a parabola

• a cubic

What are the solutions?

• -2, 1

• 1, 2

• -1,2

• 0,-4

• ± 1/4
• ± 9/36
• ± 1/2
• No real solution

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

• ±81
• ±9
• ±3
• No real solution

• ±√9
• ±3
• ±1
• No real solution

Solve

• {49,-49}

• {8,-8}

• {7,-7}

• {7i, -7i}

• ±√9
• ±3
• ±1
• No real solution

• x= 9, -9

• x= -49, 49

• x= 7, -7

• x= -5, 5