Question

if P=7x2+5xy-9y2, Q=4y2-3x2-6xy and R=4x2+xy+5y2, show that P+Q+R​

Answer 1

Answer:0 is ans

Step-by-step explanation:

We get constant term after addition =14-6+8= 0. _(1)eq

Then,

(Y) varible term as

=10y+8y-18y =0. _(2)eq

Then,

(xy) term

= xy-6xy+5xy =0. _(3)eq

At last

Add all the three eq u get 0 as ans

I HOPE ITS HELP MARK AS BRAINLIST

Answer 2

Answer:0

Step-by-step explanation:

We get constant term after addition =14-6+8= 0. _(1)eq

Then,

(Y) varible term as

=10y+8y-18y =0. _(2)eq

Then,

(xy) term

= xy-6xy+5xy =0.