Math, asked by sanjana141421, 3 months ago

Find the value of k if the division of kx^3 + 9x^2 + 4x -10 by x+3 leaves a remainder -76​

Answers

Answered by helperadi
1

Answer:

k=2

Step-by-step explanation:

x= -3

f(x)=kx³+9x²+4x-10

putting the value of x in f(x)

f(-3) => k(3)³+9(-3)²+(4*(-3))-10=-76

=> -27k + 81 - 12 - 10 = - 76

=>-27k = - 76 + 22 - 81

=>-27k = - 135

by cancelling(-) from both sides

27k=135

by dividing 27 on both sides

k=2

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