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## Answers

Just simply substitute that corresponding values of your equation into the formula

For example 4x² -7x + 2

(This is in the form ax² ± bx ± c where 'a' can never be equal to 0)

a = 4

b = -7

c = 2

Using the formula,

x = [- (-7) ± √(-7)² - 4(4)(2)] / 2(4)

x = (7 ± √49 - 32) / 8

x = (7 ± √17) / 8

Since √17 can't be simplified further we'll just leave it like that