Question

from the sum of 3 x square - 5 x + 2 and minus 5 x square - 8 x + 6 - 4 x square - 9x + 7​

Answer 1

Question -:

From the sum of

$3 {x}^{2} - 5x + 2 \: and \: minus \: 5 {x}^{2} - 8x + 6 - 4 {x}^{2} - 9x + 7$

First we will add the equation

$5 {x}^{2} - 8x - 6 - 4 {x}^{2} - 9x + 7$

${x}^{2} - 17x + 13$

Now we will subtract second equation from first equation

$3 {x }^{2} - 5x + 2 - ( {x}^{2} - 17x + 13$

$3 {x}^{2} - 5x + 2 - {x}^{2} - 17x + 13$

$3 {x}^{2} - {x}^{2} - 17x - 5x + 2 + 13$

$2 {x}^{2} - 22x + 15$

$\: thus \: answer \:is \: \\ 2 {x}^{2} - 22x + 15$

Hope this will help you

.......Thank you