Evaluate the following expressions given x=6 and y=2

Question

Evaluate the following expressions given x=6 and y=2

Evaluate the following expressions given x=6 and y=2

a. 25x - 3y

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6

b. x² + 5x + 6 =

c. (4x)⁴ x 6y

-----------------

10y

d. −3x³+8x+6y

Answer 1

(25x-3y)/6 = (25(6) -3(2))/6 = (150-6)/6 = 144/6 = 24

x^2 +5x+6 = (6)^2 +5(6) + 6 = 36 +30+6 = 72

(4x)^4(6y)/10y = [(4)(6)]^4(6)(2)/10(2) = 24^4(24(2)/20 = 24^5/10 = 796262.4,

-3x^3 + 8x +6y = -3(6)^3 + 8(6) +6(2) = -648+48+12 = -588