Question

solve the equation : ( x+7)2+ x2=(17)2 . ( all the 2 outside the brackets are square )​

Answer 1

Answer:

(x+7)2 + 2x=(17)2

2x+14+2x=34

4x=34-14

4x=20

x=20/4

x=5

Answer 2

We get x= 8 or x=-15.