Alg.2 Section 1-1 to 1-4 Review

•  $\left(x-2\right)\left(x-3\right)$

Solve
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

HOW MANY zeros does this parabola have? 

• 4

• 2

• 0

• 1

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make the equation equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Find the zeros of the function: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

• x = 0 and x = 3 / 7

• x = 0 and x = - 3 / 7

• x = 0 and x = 7 / 3

• x = -5 and x = 3 / 7

• a = ^-3/₄, ³/₄ 

• a = ^-4/₃, ⁴/₃ 

• a = ^-9/₁₆, ⁹/₁₆ 

• a = ^-16/₉, ¹⁶/₉