Question

Given that x=5 and y=3 evaluate each of the following expressions.

(a) 4x-7y
(b) 2x2-y3​

Answer 1

Answer:

(a) - 1

(b) 23

Step-by-step explanation:

It is given that x=5 and y=3.

Putting the value of x and y in these equation,

(a) 4(5)-7(3) = 20-21 = -1

(b) 2(5)^2-(3)^3 = 2(25)-27 = 50-27 = 23

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