Question

prove algebraically that (x+y) (x+y')=x​

Answer 1

Explanation:

• (x+y)(x+y)=x
• x^2+y^2=X
• X+Y =✓X

SOBS

• X^2+Y^2+2xy=X

(x^2+Y^2=X)

• X+2xy=X

1. if X+2xy is X, then value of 2xy should be 0.so,neither X or y is zero.

• so,X=X

hence proved.

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