Question

I want the answers of these questions in group 6 please help if you can solve any of these questions please

Answer 1

Answer:

1. 100

2.5x^2-33x-14

Step-by-step explanation:

1. p+q=12

pq=22

squaring both side

(p+q)^2=(12)^2

p^2+q^2+2pq=144

p^2+q^2+2×22=144

p^2+q^2+44=144

p^2+q^2=144-44

p^2+q^2=100

2.(x^2-49)×(5x+2)/(x+7)

(x^2-7^2)×(5x+2)/(x+7)

(x+7)(x-7)×(5x+2)/(x+7) {x^2-y^2=(x+y)(x-y)}

(x-7)×(5x+2)

x(5x+2)-7(5x+2)

5x^2+2x-35x-14

5x^2-33x-14