Question

Is x=5 a solution of the equation xsquare-2x-15=0

Answer 1

Answer:

x^2-2x-15=0

25-10-15

= 0

plz mark as brainleast

Answer 2

x² - 2x - 15 = 0 ; x = 5

LHS

(5)² - 2(5) -15

= 25 - 10 - 15

= 25 - 25

= 0

RHS

= 0 (Given)

Since LHS = RHS therefore x = 5 is a solution of the equation x² - 2x - 15 = 0

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