Question

And for this equation Simplify: (4b + 3) (2b - 5) is the answer 8b2 - 15 ?

Answer 1

wrong!!

Answer 2

no you need 4 multiplications, not two

Answer 3

\[(4b + 3) (2b - 5) =4b\times 2b-5\times 4b+3\times 2b-3\times 5\]

Answer 4

so like 8b^2 - 15 ?

Answer 5

\[8b^2-20b+6b-15\]
\[8b^2-14b-15\]

Answer 6

btw this is not "simplifying" it is "multiplying"

Answer 7

\[\because (4b+3)(2b−5) =\large 4b(2b-5)+3(2b-5)\]