Factor the expression given below. Write each factor as a polynomial in descending order. Enter exponents using the caret (^). For example, you would enter x2 as x^2. The expression is: 125x^3+343y^3 I got (5x+7y)(25x^2-35xy+49y^2) but I'm not sure if it's correct.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

the answer is b.

step-by-step explanation: