Question

sub 13xy-6x^2+4a^2-1 from 25x^2+16xy-3b^2-2​

Answer 1

Answer:

sol- (25x^2+16xy-3b^2-2)-(13xy-6x^2+4a^2-1

=25x^2+6x^2+4a^2-2-13xy+6x^2+4a^2-1

=31x^2+3xy-4a^2-3b^2-1Answer

Answer 2

Step-by-step explanation:

Write in standard form:

-6x^2+4a^2+13xy-1 from 25x^2-3b^2+16xy-2

Now subtracting:

=25x^2-3b^2+16xy-2 - (-6x^2+4a^2+13xy-1)

=(25x^2 +6x^2) + (16xy-13xy) + (-2+1) + (-3b^2) + (-4a^2)

=31x^2+3xy-1-4a^2-3b^2