Question

plz answer Q8 maths class 10

Answer 1

x=-5

so

2x2+px-15=0
50+p(-5)-15=0
50-5p-15=0
50-15=5p
35=5p
p=7

and

p(x2+x)+k=0
7(-5*-5+(-5))+k=0
7(25-5)+k=0
7(20)+k=0
140+k=0
k=-140

thanxs.