Question

If x + y = 4, then find the value of xy + y + 12x7 - 64​

Answer 1

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${ - x}^{2} + 3x + 24$

Step-by-step explanation:

x+y=4

y=4-x

=xy+y+84-64

=x(4-x)+4-x+20

$4x -xpower2 + 4 - x + 20$

=(-x)power2+3x+24

Answer 2

Answer:

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