Question

3y² - 6y - 4 FROM 5 + y - 2y² *

Answer 1

Answer:

Given question :

${3y}^{2} - 6y - 4 \: from \: 5 + y - {2y}^{2}$

Solution :

Subtracting those two polynomials :

$(5 + y - {2y}^{2} ) - ( {3y}^{2} - 6y - 4)$

$5 + y - {2y}^{2} - {3y}^{2} + 6y + 4$

${ - 2y}^{2} - {3y}^{2} + y + 6y + 5 + 4$

${ - 5y}^{2} + 7y + 9$

${5y}^{2} - 7y - 9$

$ans. \: \: {5y}^{2} - 7y - 9$

Adding those two polynomials :

$(5 + y - {2y}^{2} ) + ( {3y}^{2} - 6y - 4)$

$5 + y - {2y}^{2} + {3y}^{2} - 6y - 4$

${ - 2y}^{2} + {3y}^{2} - 6y + y - 4 + 5$

${y}^{2} - 5y + 1$

$ans. \: \: {y}^{2} - 5y + 1$

You have not told that whether we have to do subtraction or addition so I have given both the solution.

Hope it helps.