Practice problem
Simplify 2x2+6x−8x2−3x−28 ⋅2x2−6x−56x2−7x+6\frac{2x^2+6x-8}{x^2-3x-28}\ \cdot \frac{2x^2-6x-56}{x^2-7x+6}x2−3x−282x2+6x−8 ⋅x2−7x+62x2−6x−56 when x2−3x−28≠0x^2-3x-28\ne0x2−3x−28=0 and x2−7x+6≠0x^2-7x+6\ne0x2−7x+6=0.
4(x−7)x\frac{4(x-7)}{x}x4(x−7)
4(x+7)x+3\frac{4(x+7)}{x+3}x+34(x+7)
4(x+4)x−6\frac{4(x+4)}{x-6}x−64(x+4)
4(x+5)x−4\frac{4(x+5)}{x-4}x−44(x+5)
Type a concept, like “slope” or “photosynthesis”.
