Question

a+2b+5 and a2+4b2=13, what is the value of ab=?[show each steps]

Answer 1

just one questions
is it a^2 or 2(a) for the second equation?

Answer 2

no simple algebra

Answer 3

so it's 2a?

Answer 4

nm lets just assume its a^2...

Answer 5

so what do you think you can do to solve a system of equations? @heartoftheocean

Answer 6

just clarify\[a+2b=5\]\[a^2+4b^2=13\]what is the value of \(ab\)

Answer 7

(a+2b)2 = a2+4b2 + 4ab

Answer 8

i would say start by squaring both sides of \(a+2b=5\)