# Rectangle

Calculate area of the rectangle if its length is 12 cm longer than its width and length is equal to the square of its width.

Result

S =  64 cm2

#### Solution: Checkout calculation with our calculator of quadratic equations.

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments: Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation?

## Next similar examples:

1. Square and rectangle Calculate the side of a square which content area equals area of the rectangle having a length of 3 cm greater and by 2 cm smaller than the side of the square.
2. Rectangle - sides What is the perimeter of a rectangle with area 266 cm2 if length of the shorter side is 5 cm shorter than the length of the longer side?
3. A rectangle A rectangle has an area of 36 cm2. What could the length and width of rectangle be?
4. Roots Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
5. Combinations How many elements can form six times more combinations fourth class than combination of the second class?
6. Square root 2 If the square root of 3m2 +22 and -x = 0, and x=7, what is m?
7. Discriminant Determine the discriminant of the equation: ?
8. Quadratic equation Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
9. Theorem prove We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
10. Equation Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
11. Algebra X+y=5, find xy (find the product of x and y if x+y = 5)
12. Expressions 3 If k(x+6)= 4x2 + 20, what is k(10)=?
13. Evaluation of expressions If a2-3a+1=0, find (i)a2+1/a2 (ii) a3+1/a3
14. Expression with powers If x-1/x=5, find the value of x4+1/x4
15. Solve 3 Solve quadratic equation: (6n+1) (4n-1) = 3n2
16. Parametric equation Find the parametric equation of a line with y-intercept (0,-4) and a slope of -2.
17. Quadratic function 2 Which of the points belong function f:y= 2x2- 3x + 1 : A(-2, 15) B (3,10) C (1,4)