Add the given expression — task. Mathematics State Board, Class 7.

PDF chapter test TRY NOW

$86 x^{2} - 53 xy + 31 y^{2}$ ,

$28 xy - 60 y^{2} + 31 x^{2}$ and

$y^{2} + xy - 60 x^{2}$

$=$

$x^2\ -$

$xy$

$^2$

(Note: Insert the suitable coefficient in the first two answer box and enter the coefficient of

$xy$ and the

$y^2$ with its sign.)

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content