Question

find the values of the following expressions for x =1 and y=-3. (a) 4 x+2y. (b)12x² -3y²?​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

a) 4x + 2y

= (4×1 )+ (2×- 3)

= 4+(-6)

= -2

b) 12x² - 3y²

= (12 (1×1))- (3 (-3×-3))

= (12× 1) - ( 3 × -9)

= 12- (-27)

= 39

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