How much does the sum of the roots of the equation (x+1) (x-3) = 0 exceed the product of its roots? (a) 1 (b) 2 (c) 3 (d) 4 (e) 5?

Question

Mathematics

Jeremy Silva

23 October, 14:26

How much does the sum of the roots of the equation (x+1) (x-3) = 0 exceed the product of its roots? (a) 1 (b) 2 (c) 3 (d) 4 (e) 5?

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Answers (1)

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Sidney Cooley · Answer 1

(x+1) (x-3) = 0

(x+1) = 0, (x-3) = 0

x=-1, x=3 are the roots of the equation

so, the sum the roots of the equation: - 1+3=2

then the product of the roots of the equation: - 1*3=-3

so, 2 - (-3) = 2+3=5

it exceeds by 5

so the answer is (e) 5