Question

Multiply ( 2a+3b)by (4a_5b)​

Answer 1

2a + 3b × 4a _ 5b

2a+4a+3b+5b

${a}^{2} + {b}^{2}$

answer is correct

Answer 2

Answer:

=2a×4a-2a×5b+3b×4a-3b×5b

=8a^2-10ab+12ab-15b^2

=8a^2+2ab-15b^2