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Subtract $(x^{2} - 2 x + 3)$ from the sum of $(3 x^{2} + x - 2)$ and $(x^{2} + 4 x + 1)$ .
What is the final expression?

Class 7Adding and Subtracting ExpressionsAlgebra

A $3 x^{2} + 7 x - 4$
B $3 x^{2} + 3 x - 4$
C $5 x^{2} + 7 x - 4$
D $3 x^{2} + 7 x + 2$

Step-by-Step Solution

Sum =

(3 x^{2} + x - 2) + (x^{2} + 4 x + 1) = 4 x^{2} + 5 x - 1

. Subtract:

(4 x^{2} + 5 x - 1) - (x^{2} - 2 x + 3) = 3 x^{2} + 7 x - 4

.

Answer: A)

3 x^{2} + 7 x - 4

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