Question

If 3 is root of the equationx^+kx-24=0 then k is

Answer 1

3 is the root. of the equation

=(3)² + 3k - 24 =0

=3k -15 =0

=3k = 15

=k =15

THE THE EQUATION IS x²+ 5x-24= 0

x² + 8x - 3x - 24=0

x (x+8) -3(x+8)=0

(x+8)(x+3)=0

x=-8 and 3

THUS THE ROOT IS -8

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Hope it may helps you!