We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421
Hope that helps you!!
<span>6x-2y=-8
-2y =-6x-8
y = 3x+4
y= 3x+4</span>
3(5y-6)-2y=8
15y-18-2y=8
13y-18=8
13y=26
y=2
That is because you have the expression you can substitute it on the system.( hope this helps)
He passed out 91 objects. 13 x 4 = 52 + 39 = 3 x 13
No, a line of symmetry should cut the shape or object in half and represent a perfect mirror image.
