Question

Simplify: 3y (2y – 7) – 3 (y – 4) – 63 and evaluate for y = – 2



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Answer 1

Answer:

Value obtained by simplifying equation 3y (2y -7) -3 ( y-4)-63 and substituting y = -2 is 21.2

Answer 2

Step-by-step explanation:

3y(2y-7 ) - 3 (y-4) - 63

6y^2 - 21y - 3y + 12 - 63

6y^2 - 24y - 41

put y = -2

(6× -2× -2) - 24 × -2 - 41

24 - (-48) - 41

24 + 48 - 41

72 - 41

31

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