Question

Q2) Simplify the following expression and evaluate for x = 2 and y = (-1):
5ry(3x + 4y + 7) - 3y(xy + 1-9)​

Answer 1

Answer:

Answer is (-111).

Step-by-step explanation:

= 5(2)(-1) [3(2) + 4(-1) + 7] - 3(-1) [(2)(-1) + 1 - 9]

= -10 (6 - 4 + 7) + 3 (-2 + 1 - 9)

= -60 + 40 - 70 - 6 + 3 - 18

= -20 - 76 - 15

= (-111)

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