Question

a-b=3 a3-b3=117 a+b=?

Answer 1

Let A = X and B = Y.

ACCORDING TO QUESTION,

X- Y = 3

X = 3+Y ........(1)

Again,

(X)³ - (Y)³ = 117

(3+Y)³ - (Y)³ = 117

3³-3×3²×Y+3×3×Y² - Y³ - y³ = 117

27-2Y + 9Y² = 117

9Y²-2Y-90= 0


FACTORIES THIS U WILL GET THE VALUE OF Y ... AFTER FINDING THE VALUE OF Y PUT IN X = 3+Y .. THEN YOU WILL GET THE VALUE OF X.

AND THEN,

PUT IN,

A+ B = X+Y

Answer 2

Answer:

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