1.5 Equations

Linear Equation

100

5x - 18 = 15x + 5

What is X = -2.3

300

5x - (-3) = (x/4)

What is (12/-19) or -0.6316

500

-7w = 15 -2w

What is -3

Complete the square

100

x² - 8x + 13 = 0

What is x = 4 ± √3

300

x² + 2x - 5 = 0

What is -1 ± √6

500

x² - 4x + 2 = 0

x = 2 ± √2

Quadratic formula

100

3x² - 5x - 1 = 0

What is (-3/2)

300

x² + 5x - 6 = 0

What is -6, and or 1

500

x² - 7x + 10 = 0

What is 2, and or 5

Simple Quadratics

100

Isolate M

F = G (mM)/r²

What is  M = (r²F)/Gm

300

Isolate V

a = (v² - 12x)/(r + 1)

What is  V = √ar + a + 12x

500

Isolate r

a - 7 = r² - 2²

What is r = √a-3