x² – x = 1 Now, we subtract 1 from each side of the equation to achieve what is known as the standard form of a quadratic equation: x² – x – 1 = 0 Equivalently, this may be written as: ...

PDF for Mathematics from the official Uttarakhand Board website. Access chapter-wise details for Mathematics with the link to ...

Sometimes we have to form quadratic equations to help us solve problems. Dave has a box which has one side of length (\({x}\) – 3) and another side of length (\({x}\) + 2). Find an expression ...

Standard form of a quadratic equation ax2 + bx + c = 0, (a ≠ 0). Solution of the quadratic equations (only real roots) by factorization, by completing the square and by using quadratic formula.