Simplify the expression and evaluate 3y(2y - 7) - 3(y - 4) -63 for y = -2.
Give me a very clear answer so that i mark you brainliest
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1
Answer:
21
Hope it will helps you my friend.
Step-by-step explanation:
3y(2y-7) - 3(y-4) - 63
since y= -2
therefore,
=3(-2)(2*-2 -7) - 3(-2-4) - 63
= -6(-4 -7) -3(-6) -63
= -6(-11) +18 -63
= 66 - 45
= 21
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