exam Maths Puzzle Numerical Ability

Problem #18
Directions: Multiply the following fractions.

(2x^2-x-3)/(3x^2+7x+4) Multiplied by (3x^2-11x-20)/(4x^2-9)

Problem #38

Directions: Divide the following fract

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exam Other Question

If you have two points, and you want to find the equation of the line that runs through them, the place to start is by finding the slope.To find the slope, you figure out how far you have to move along eachaxis to get from one point to the other. I hope I am in the right section but I am completly loss with this.

If f(x)=x(x-1)(x-4)^2, use interval notation to give all values of x where f(x)>0.

a. (-infinity,0)U(4,inf