& Find the value of 5.x 2- 3x + 7 when
(u)x=3
(w) x = -4.
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Step-by-step explanation:
u) 5 (3) + 2- 3(3)+7
=15+2-9+7
=15
w) 5 (-4) + 2- 3(-4)+7
=-20+2+12+7
=1
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