Quadratics Solving Review

Solve.

5x² + 6 = 17x

Check all answers that apply.

• x = 3

• x = -3

• $x=\frac{2}{5}$

• $x=-\frac{2}{5}$

Which of the following are solutions to the equation 4(x-1)²=16?

• x = 3 and x = -1

• $x=\pm2$
  

• $x=\pm4$

• x = 3 and x = 1

What is the smallest solution to the equation 7(x - 4)² - 18 = 10? (Enter only the numerical answer)

Factor completely:

6x² + 40x - 14

• 2(3x - 1)(x + 7)

• (6x - 1)(x + 14)

• 2(3x + 7)(x - 1)

• Cannot be factored

Which of the following are solutions to the equation: 10x²+25x+7=7?

• No solution

• x = 0

• x = 7

• x = 5

• $x=-\frac{5}{2}$

Solve:

5(3x - 2)(x + 1) = 0

• $x=-1\ and\ x\ =\frac{2}{3}$

• x = 5, x = 2 and x = -1

• x = 2 and x = -1

Solve:

4x² + 3 = x² - 7x

• $x=\frac{7\pm\sqrt{13}}{6}$

• $x=\frac{\pm\sqrt{6}}{6}$

• $x=\frac{-7\pm\sqrt{13}}{6}$

Solve:

-2x² + 10 = -90

• $x=\pm50$

• $x=\pm10$

• $x=2\pm\sqrt{5}$

• $x=\pm5\sqrt{2}$

Decide on the best method to solve:

3x² + 13x = -4

• Square Root Method

• Factor Method

• Quadratic Formula

• Skip the question

Decide on the best method:
x² - 3x - 54 = 0

• Square Root Method
• Factor Method
• Complete the Square
• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B