Question

please solve this is a request to nandanmk ​

Answer 1

Add::

$\bf( \frac{2}{3}x {y}^{2} - \frac{1}{2} {x}^{2} y - \frac{1}{4} ) , \frac{1}{3} x {y}^{2} + \frac{3}{4} {x}^{2}y + \frac{1}{3}$

and

$\bf{ \frac{3}{4} x {y}^{2} - \frac{1}{4} {x}^{2} y + \frac{1}{4} }$

You should add like terms

$i.e \sf{( \frac{2}{3} + \frac{1}{3} + \frac{3}{4} )x {y}^{2} } + ( \frac{ -1 }{2} + \frac{3}{4} - \frac{1}{4}) {x}^{2} y + ( \frac{ - 1}{4} + \frac{1}{3} + \frac{1}{4} )$

=>0 x²y +7/4 xy²+1/3

=>7/4xy²+1/3

SUBTRACT::

1) -7x³+18x²+11x - (2x³+7x²+4x)

=-7x³+18x²+11x - 2x³-7x²-4x= 11x²-9x³+7x

2)5x²/6 -2x/5-1/3 - (2x²/3-x/3+2/3)

=x²/6 - x/15 -1