A and C appear to be 5th degree polynomials
It's 180-40 divide 2 which equals = 70
I hope it helped you!!!
The answer for 2x - 3n = -5n+3x is x= 2n
Linear equation: y = mx + c
m = slope
c = y-intercept
Step-by-step explanation:
![(7r+5s)^2](https://tex.z-dn.net/?f=%287r%2B5s%29%5E2)
use the pattern
![(a+b)^2=a^2+2ab+b^2](https://tex.z-dn.net/?f=%28a%2Bb%29%5E2%3Da%5E2%2B2ab%2Bb%5E2)
![(7r+5s)^2=(7r+5s)(7r+5s)](https://tex.z-dn.net/?f=%287r%2B5s%29%5E2%3D%287r%2B5s%29%287r%2B5s%29)
Apply FOIL method to multiply the parenthesis
![(7r+5s)^2=(7r+5s)(7r+5s)](https://tex.z-dn.net/?f=%287r%2B5s%29%5E2%3D%287r%2B5s%29%287r%2B5s%29)
![(7r+5s)(7r+5s)\\49r^2+35rs+35rs+25s^2\\49r^2+70rs+25s^2](https://tex.z-dn.net/?f=%287r%2B5s%29%287r%2B5s%29%5C%5C49r%5E2%2B35rs%2B35rs%2B25s%5E2%5C%5C49r%5E2%2B70rs%2B25s%5E2)
Compare the expression with ![(a+b)^2=a^2+2ab+b^2](https://tex.z-dn.net/?f=%28a%2Bb%29%5E2%3Da%5E2%2B2ab%2Bb%5E2)
The value of a=7r and the value of b=5s
Answer :
a=7r , b=5s