2013 · Q5
What is the LCM of x²+2x−8, x³−4x²+4x and x²+4x?
Elementary MathematicsAlgebra
- Ax(x+4)(x−2)²
- Bx(x+4)(x−2)
- Cx(x+4)(x+2)²
- Dx(x+4)²(x−2)
Explanation
=(x+4)(x−2), x(x−2)², x(x+4); LCM=x(x+4)(x−2)². Answer A.
What is the LCM of x²+2x−8, x³−4x²+4x and x²+4x?
Explanation
=(x+4)(x−2), x(x−2)², x(x+4); LCM=x(x+4)(x−2)². Answer A.