Question

Add 3x2 - 4y2, 5x2 - 6y?, -x2 + y2 x² + y²​

Answer 1

Step-by-step explanation:

5x−8y+2z)+(3z−4y−2x)+(6y−z−x)+(3x−2z−3y)

=5x−8y+2z+3z−4y−2x+6y−z−x+3x−2z−3y

=(5x−2x−x+3x)+(−8y−4y+6y−3y)+(2z+3z−z−2z)

(Combiningliketerms)

=(5−2−1+3)x+(−8−4+6−3)y+(2+3−1−2)z

=5x−9y+2z

Hence, (5x−8y+2z)+(3z−4y−2x)+(6y−z−x)+(3x−2z−3y)=5x−9y+2z.

Answer 2

Answer: (3$x^{2}$ - 4$y^{2}$) • (5$x^{2}$ - 6$y^{2}$)