Question 829306
---
x = width
y = length
---
y = x + 4
---
area = xy
area = x(x + 4)
area = x^2 + 4x
---
perimeter = 2x + 2y
perimeter = 2x + 2(x + 4)
perimeter = 2x + 2x + 8
perimeter = 4x + 8
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php