Question

if x+2y = 8 and xy= 6 find the value of x^3 + 8^3

Answer 1

Answer:

Step-by-step explanation:

BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

Answer 2

Answer:

x + 2y = 8

xy = 6

y = 6/x

So x + 12/x = 8

x^2 - 8x + 12 = 0

(x-2)(x-6) = 0

So x=2 and y=3

(or)

x=6 and y=1

x^3 + 8y^3 = 8 + 8×27 = 224 (if x=2)

(or)

x^3 + 8y^3 = 216 + 8×1 = 224 (if x=6)

So final answer is 224.

PLS MARK BRAINLIEST AND FOLLOW ME FOR MORE ANSWERS.