Question

√(ab+c^2) where a=4, b=-2 and c=-3

Answer 1

thats just plug and play; the math itself is self-evident

Answer 2

√(4(-2) + (-3)^2)

Answer 3

\[\sqrt{(4)(-2) + (-3)^2}=\sqrt{1} = 1\]

Answer 4

try using the website web2.0calc its a free scientific calculator