Asked by garry

One side of a square is 2x + 5 centimeters long. The area of the square is ax^2 + bx + c square centimeters. What is the value of a + b + c?

I litteraly dont undestand this problem at all please help me and guide me throught it.
Answered by Jo
Okay, well to find the area of a square you would need to do one side times another side which would result in the area. According to this equation in polynomials, it would be (2x+5) cm times (2x+5) cm....
Once you FOIL these sides together you should get something on the lines of:
"4x^2+20x+25"...
You need to add the a, b and c within the polynomial so we can take 4, 20 and 25 respectively which means 4 + 20 + 25 = 49...
Answered by garry
ty for explaining it
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