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What is the value of (j+3k)(5)?

j(x) = (x + 4)^2; k(x) = 8 - x

(j + 3k)(5) =

What is the value of (j+3k)(5)? j(x) = (x + 4)^2; k(x) = 8 - x (j + 3k)(5) =-example-1
User Stefan Luv
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1 Answer

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Explanation:

J=(x+4)²

K=(8-x)

X=5

=J+3k

=(x+4)(x+4)+3(8-x)

=(x²+8x+16+24-3x)

=25+25+40

=90

Alternatively:

J=(5+4)²

J=81

K=8-5

K=3

J+3k

81+3(3)

81+9

90

User Ye Liu
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