Question

4x%20-%205%29%20%2B%20%283x%20-%201%29" id="TexFormula1" title=" ({3x}^{2} + 2x + 1) + ( {2x}^{2} - 4x - 5) + (3x - 1)" alt=" ({3x}^{2} + 2x + 1) + ( {2x}^{2} - 4x - 5) + (3x - 1)" align="absmiddle" class="latex-formula">
​

Answer 1

Answer:

$5x^2+x-5$

Step-by-step explanation:

$(3x^2+2x+1)+(2x^2-4x-5)+(3x-1)= \\\\(3x^2+2x^2)+(2x-4x+3x)+(1-5-1)= \\\\5x^2+x-5$

Hope this helps!