Question

the area of the two triangles is given by the functions: area of triangle a: $x^{2}+x$ area of triangle b: $x^{2}-3x$ which function represents the sum of the areas of the two triangles? 4x -4x $2x^{2}-2x$

Explanation:

Step1: Write the sum expression

$(x^{2}+x)+(x^{2}-3x)$

Step2: Remove parentheses

$x^{2}+x + x^{2}-3x$

Step3: Combine like - terms

$(x^{2}+x^{2})+(x - 3x)=2x^{2}-2x$

Answer:

C. $2x^{2}-2x$