Using Square Roots & Completing the Square - Practice

Front

Solve by Completing the Square: 2x² + 4x - 5 = 7. What are the solutions?

Back

-3.6 and 1.6

Front

Create a Perfect Square Trinomial: x² + 6x + ____. What number completes the square?

Back

9

Front

What do you do to the b value to correctly complete the square?

Back

Divide it by 2 and square the result.

Front

Solve: (x - 2)² = 49. What are the possible values of x?

Back

± 7

Front

Create a Perfect Square Trinomial: x² + 22x + ____. What number completes the square?

Back

121

Front

What is a Perfect Square Trinomial?

Back

A trinomial that can be expressed as the square of a binomial.

Front

How do you find the vertex of a parabola in the form y = ax² + bx + c?

Back

Use the formula x = -b/(2a).

Front

What is the formula for completing the square?

Back

y = a(x - h)² + k, where (h, k) is the vertex.

Front

What is the first step in completing the square for the equation ax² + bx + c = 0?

Back

Divide all terms by a to make the coefficient of x² equal to 1.

Front

If you have the equation x² + 10x + c, what value of c makes it a perfect square?

Back

25