The equation x + 1/x = 3 (x ≠ 0) is expressed as a quadratic equation in the form of ax² + bx + c = 0. The value of a – b + c is :
Which of the following equations is a quadratic equation ?
The sum of areas of two squares is 2650 cm². If the sum of their perimeters is 280 cm, find the sides of the two given squares.
Express the equation 1/x – 1/(x – 2) = 3, (x ≠ 0, 2) as a quadratic equation in standard form. Hence, find the roots of the quadratic equation so obtained.
If (x + 1)³ = x³ + 1 is expressed as a quadratic equation in the form px² + qx + r = 0, then the value of p – q + r is :
The sum of the squares of two consecutive odd numbers is 514. Find the numbers.
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