Question

using general formula method find the roots of (x+7)square +xsquare =(13)square​

Answer 1

Answer:

5 and -12

Step-by-step explanation:

(x+7)²+x²=(13)²

x²+14x+49+x²=169

2x²+14x-120=0

x²+7x-60=0

+=7 and ×=-60

numbers=12,-5

x²+12x-5x-60=0

x(x+12)-5(x+12)=0

(x-5)(x+12)=0

x-5=0

x=5

x+12=0

x=-12

so the roots are 5 and -12