Question

please solve
please it is urgent​

Answer 1

Answer:

Step-by-step explanation:

Given$P=17x^3+15x^2-7x+9\\\\Q=10x^3-5x^2+2x+1\\\\R=11x^3-6x^2+5x+10\\\\Now a:P+Q+R\\\\=(17x^3+15x^2-7x+9)+(10x^3-5x^2+2x+1)+(11x^3-6x^2+5x+10)\\\\=x^3(17+10+11)+x^2(15-5-6)+x(-7+2+5)+9+1+10\\\\=37x^3+4x^2+20$$b:P-(Q+R)\\\\=(17x^3+15x^2-7x+9)-((10x^3-5x^2+2x+1)+(11x^3-6x^2+5x+10))\\\\=x^3(17-10-11)+x^2(15+5+6)+x(-7-2-5)+9-1-10\\\\=-4x^3+26x^2-14x-2\\\\c:P-Q+R\\\\=(17x^3+15x^2-7x+9)-(10x^3-5x^2+2x+1)+(11x^3-6x^2+5x+10)\\\\=x^3(17-10+11)+x^2(15+5-6)+x(-7-2+5)+9-1+10\\\\=18x^3+14x^2-4x+18$

HOPE IT HELPS

Answer 2

Answer:

sorry dear i am admit forgive me