Question

-vv ang 10.
2. The sum of the square of two consecutive numbers
is 390. Formulate the quadratic equation to find the
two numbers.​

Answer 1

Answer:

let the no be x

then according to the question

x^2+(x+1)^2=390

x^2+x^2+1+2x=390

2x^2+2x+1-390 =0

2x^2+2x-389=0

by using quadratic formula

x=-b_+√b^2-4ac/2a

x=-2+-√4+8x389/4