Suriin ang malawak na saklaw ng mga paksa at makakuha ng mga sagot sa IDNStudy.com. Magtanong at makakuha ng detalyadong sagot mula sa aming komunidad ng mga eksperto.

what is the answer of this (x+y)(x+y)


Sagot :

(x+y)(x+y) = x² + 2xy + y²

Using the FOIL Method
Multiply the first terms.
(x)(x) = x²

Multiply the first term of the first and last term of the second.
(x)(y) = xy

Multiply the last term of the first and first term of the second.
(y)(x) = xy

Lastly, multiply the last terms.
(y)(y) = y²

Put the answers respectively together.
x² + xy + xy + y²

Add the like terms. (the like terms are underlined)
x² + xy + xy + y²
xy + xy = 2xy

Then we have the answer:
x² + 2xy + y²
                                                                             -KookEin
Multiply each term of the polynomial by the terms of another polynomial.

x · x = x²
x · y = xy
y · x = xy
y · y = y²

x² + xy + xy + y²
Combine like terms
x² + xy² + y²                      is the final answer