If (x + 2)(3x^2 + x + 5) = Ax^2 + Bx^2 + Cx + D, what is the value of A + B - C - D?
+1223 (x + 2)(3x^2 + x + 5)
= (x)(3x^2 + x + 5) + 2(3x^2 + x + 5)
= (3x^3 + x^2 + 5x) + (6x^2 + 2x + 10)
= 3x^3 + 7x^2 + 7x + 10
I'm assuming the question is a typo and you want to find Ax^3 + Bx^2 + Cx + D. It shouldn't be too hard to match up the coefficients to find the answer.
+1223 (x + 2)(3x^2 + x + 5)
= (x)(3x^2 + x + 5) + 2(3x^2 + x + 5)
= (3x^3 + x^2 + 5x) + (6x^2 + 2x + 10)
= 3x^3 + 7x^2 + 7x + 10
I'm assuming the question is a typo and you want to find Ax^3 + Bx^2 + Cx + D. It shouldn't be too hard to match up the coefficients to find the answer.
