Question

1. From the sum of 3a^2 + 5ab – 7b^2and
11a^2- 6ab + 2b^2, subtract a^2- 2ab - 3b^2​

Answer 1

Answer : 12 a^2-3ab-8b^2

Answer 2

Answer:

ok lets do it

Step-by-step explanation:

first

(11a^2-6ab+2b^2)-(a^2-2ab-3b^2)

=11a^2-6ab+2b^2-a^2+2ab+3b^2

=10a^2-4ab+b^2

(3a^2+5ab-7b^2)+(10a^2-4ab+b^2)

=3a^2+5ab-7b^2+10a^2-4ab+b^2

=13a^2+ab-11b^2