Question

Q1) Solve the following equation by graphical method

1) 5x + 3y =9 ; 2x - 3y= 12

2) x+7y = 10 ; 3x -2y= 7

Q2) The sum of squares of two consecutive natural number is 113. Find the numbers. hi​

Answer 1

Step-by-step explanation:

x2+(x+1)2=113

x2+x2+1+2x=113

2x2+2x=113-1

2x2+2x=112

x2+x=56

x(x+1)=56

then x=7,and x+1=8

the two consecutive natural number is 7 and 8