Mathematics
Which of the following is not a quadratic equation?
- (x + 2)2 = 2(x + 3)
- x2 + 3x = (-1)(1 - 3x)
- (x + 2)(x - 1) = x2 - 2x - 3
- x3 - x2 + 2x + 1 = (x + 1)3
Related Questions
The length (in cm) of the hypotenuse of a right angled triangle exceeds the length of one side by 2 cm and exceeds twice the length of other side by 1 cm. Find the length of each side. Also find the perimeter and the area of the triangle.
If twice the area of a smaller square is subtracted from the area of a larger square, the result is 14cm2. However, if twice the area of the larger square is added to three times the area of the smaller square, the result is 203 cm2. Determine the sides of two squares.
The roots of the equation x2 - 3x - 10 = 0 are
- 2, -5
- -2, 5
- 2, 5
- -2, -5