Solve Quadratic by Square Root

Front

What is the square root property in solving quadratic equations?

Back

If x^2 = a, then x = ±√a.

Tags

CCSS.HSA-REI.B.4B

Front

Solve by taking square roots: k² - 6 = -50

Back

k = ±2i√11

Tags

CCSS.HSA-REI.B.4B

Front

Use the square root property to solve: 2(x - 4)² = 200

Back

x = -6, 14

Tags

CCSS.HSA-REI.B.4B

Front

Solve: 5b² - 4 = 41

Back

b = ±3

Tags

CCSS.8.EE.A.2

Front

Solve using square roots: k² - 6 = 43

Back

k = 7, k = -7

Tags

CCSS.8.EE.A.2

Front

Solve for x: (x - 7)² + 4 = 40

Back

x = 1, 13

Tags

CCSS.8.EE.A.2

Front

What is a quadratic equation?

Back

An equation of the form ax² + bx + c = 0, where a ≠ 0.

Front

What does it mean if a quadratic equation has no real solutions?

Back

The discriminant (b² - 4ac) is less than 0.

Tags

CCSS.HSA-REI.B.4B

Front

How do you isolate a squared term in a quadratic equation?

Back

Move all other terms to the opposite side of the equation.

Tags

CCSS.HSA-REI.B.4B

Front

What is the discriminant in a quadratic equation?

Back

The value b² - 4ac that determines the nature of the roots.

Tags

CCSS.HSA-REI.B.4B