Question

B%207%29" id="TexFormula1" title=" \tt(6x4−2x3 +7x2 −x) + ( 7x4+ 2x3−5x + 7)" alt=" \tt(6x4−2x3 +7x2 −x) + ( 7x4+ 2x3−5x + 7)" align="absmiddle" class="latex-formula">


With Solution!!​​

Answer 1

Answer:

13(x)⁴ + 7(x)²-6(x) + 7

Explanation:

$\hookrightarrow \sf (6x^4 -2x^3+7x^2-x)+(7x^4+2x^3-5x+7)$

remove the parenthesis

$\sf \hookrightarrow 6x^4-2x^3+7x^2-x+7x^4+2x^3-5x+7$

group the variables

$\hookrightarrow \sf 6x^4+7x^4-2x^3+2x^3+7x^2-x-5x+7$

add similar terms

$\sf \hookrightarrow 13x^4+7x^2-x-5x+7$

simplify

$\hookrightarrow \sf 13x^4+7x^2-6x+7$

Answer 2

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve ~

$\qquad \tt \dashrightarrow \:\tt(6x {}^{4} −2x {}^{3} +7x {}^{2} −x) + ( 7x {}^{4} + 2x {}^{3} −5x + 7)$

$\qquad \tt \dashrightarrow \:\tt6x {}^{4} −2x {}^{3} +7x {}^{2} −x + 7x {}^{4} + 2x {}^{3} −5x + 7$

Now, move all like terms aside :

$\qquad \tt \dashrightarrow \:6 {x}^{4} + 7 {}x^{4} - 2 {x}^{3} + 2 {x}^{3} + 7 {x}^{2} - x - 5x + 7$

Add the like terms ~

$\qquad \tt \dashrightarrow \:13 {}x^{4} + 7 {x}^{2} + 6x + 7$