What equation has solutions of -5 and 8?

3/6/2023

x = -5 and x = 8 {set each solution equal to x}
x + 5 = 0 or x - 8 = 0 {added 5 and subtracted 8}
(x + 5)(x - 8) = 0 {multiplied together and set equal to zero}
x² - 3x - 40 = 0 {used FOIL method or distributive property}
f(x) = x² - 3x - 40 {wrote as a function}

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