(6x^2 + 11xy - 11y^2) + (3x^2 - 5xy - 8y^2)
= x^2(6+3) + xy(11-5) + y^2(-11-8)
= 9x^2 + 6xy - 19y^2
= x^2(6+3) + xy(11-5) + y^2(-11-8)
= 9x^2 + 6xy - 19y^2
How To Solve (6x2 + 11xy - 11y2) + (3x2 - 5xy - 8y2)?
(6x^2 + 11xy - 11y^2) + (3x^2 - 5xy - 8y^2)
= (6x^2 + 3x^2) + (11xy - 5xy) + (-11y^2 - 8y^2)
= 9x^2 + 6xy - 19y^2
= (6x^2 + 3x^2) + (11xy - 5xy) + (-11y^2 - 8y^2)
= 9x^2 + 6xy - 19y^2
6 x y-19 y^2+18
The question is
(6x2+11xy- 11y2) - (3x2 - 5xy - 8y2)
expanding
6x2+11xy - 11y2-3x2+5xy+8y2
adding like terms
6x2+16xy- 11y2-3x2+8y2
subtracting like terms:
3x2+16xy-3y2
(6x2+11xy- 11y2) - (3x2 - 5xy - 8y2)
expanding
6x2+11xy - 11y2-3x2+5xy+8y2
adding like terms
6x2+16xy- 11y2-3x2+8y2
subtracting like terms:
3x2+16xy-3y2