Math, asked by megha7b, 8 months ago

when x = 3 , a = 1 , b = 2
(i) 2 ( x² - 3× ) -5 ( 7× -4 )

Answers

Answered by Frencesca

2

Answer:

-85

Step-by-step explanation:

2(x²-3x)-5(7x-4)

2(3²-3×3)-5(7×3-4)
2(9-9)-5(21-4)
2(0)-5(17)
0-5×17
-85

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