Question

plz solve this questions fast and tell me answer plz i will mark you barinliest answer​

Answer 1

Step-by-step explanation:

2. 5ab, 7a² ,14b²

may be

Answer 2

Answer:

1)

=(4x^2y- 3xy +2y^2) + ( x^2y + 7y^2)

opening brackets

= 4x^2y - 3xy + 2y^2 + x^2y + 7y^2

rearranging

= 4x^2y + x^2y -3xy + 2y^2 + 7y^2

=5x^2y - 3xy + 9y^2

= y ( 5x^2 -3xy + 9y)

2)

= (3a^2 -7b^2 + 8ab ) - (13ab -4a^2 +7b^2)

opening brackets

= 3a^2 -7b^2 +8ab - 13ab + 4a^2 - 7b^2

rearranging

= 3a^2 +4a^2 -7b^2 - 7b^2 + 8ab - 13ab

= 7a^2 - 14b^2 - 5ab