x^2+22x+72= (x*4)(x*18)... just checking if this is right?
correction* x^2+22x+72=(x+4)(x+18)
yes, you are correct
To determine if your equation is correct, we can perform the multiplication of the terms (x * 4) and (x * 18) to see if they match the original equation.
(x * 4)(x * 18) = (4x)(18x) = 72x^2
So, the expression (x*4)(x*18) simplifies to 72x^2 and not x^2+22x+72. Therefore, your equation x^2+22x+72 is not equal to (x * 4)(x * 18).