Question

what is the product of the 2 solutions of the equation x^2+3x-21=0?

Answer 1

$x^2+3x-21=0\\\\a=1;\ b=3;\ c=-21\\\\x_1x_2=\dfrac{c}{a}\\\\x_1x_2=\dfrac{-21}{1}=-21$

Answer: B. -21