Priya is now x years old. The square of her age is 12 more than 4 times her age. Forming x^2 - 4x - 12 = 0 and solving by factorisation, find her age (in years).

Question

Accepted Answer

6. x^2 - 4x - 12 = (x - 6)(x + 2) = 0, so x = 6 or x = -2. Age must be positive, so x = 6 years.

Priya is now $x$ years old. The square of her age is 12 more than 4 times her age. Forming $x^{2} - 4 x - 12 = 0$ and solving by factorisation, find her age (in years).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Solving by Factorisation practice

Priya is now x years old. The square of her age is 12 more than 4 times her age. Forming x2−4x−12=0 and solving by factorisation, find her age (in years).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Solving by Factorisation practice

Priya is now $x$ years old. The square of her age is 12 more than 4 times her age. Forming $x^{2} - 4 x - 12 = 0$ and solving by factorisation, find her age (in years).