ACT Math Prep Questions Complete Solution 2023
Quadratic Formula - -b±[√b²-4ac]/2a Slope - (y₂-y₁)/(x₂-x₁) Slope-Intercept - y=mx+b a³-b³ - (a-b)(a²+ab+b²) a³+b³ - (a+b)(a²-ab+b²) a²-b² - (a-b)(a+b) a²-2ab+b² - (a-b)² a²+2ab+b² - (a+b)² (a+b)(c+d) - ac+ad+bc+bd a(b+c) - ab+ac sine ratio - opposite ÷ hypotenuse
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