Algebramedium · Past Paper
Factorize: x^3 - 8.
A(x-2)(x^2+2x+4)
B(x-2)(x^2-2x+4)
C(x+2)(x^2-2x+4)
D(x-2)^3
✓ Correct Answer: A — (x-2)(x^2+2x+4)
Using a^3 - b^3 = (a-b)(a^2+ab+b^2), where a=x, b=2.
Share this question
More from Algebra
- Factorize: m^4 - n^4
- If 4x - 1 = 7, find the value of 2x.
- In ax^2 + bx + c = 0, if b = 0, the roots are:
- A taxi charge consists of a fixed fee plus a charge per km. If for 10 km the charge is Rs 150 and for 15 km it is Rs 200, find the fixed fee.
- The cost of 2 pencils and 3 pens is Rs 40. The cost of 3 pencils and 2 pens is Rs 35. Find the cost of a pencil.