exam Maths Puzzle Numerical Ability

I need some help on these problems. I have to put them into factored form.

1. x^2+2x+9x+18
2. x^2+4x
3. x^2+2x+48
4. x^2+2x+7x+14
5. x^2+x-12
6. x^2+12x+27

Thank You!!

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exam Other Question

Given f(x) = �3x2 + x � 5

1. Graph f(x).

2. Label the graph.
Let h be the function defined by h(x)=x2(2 means squared)-1, where the domain is the set of real numbers.
a. find h(2)
b. find h(-2)
c. if h(t) = 15 what ar the possible values of t?
d. find h(7.32).

thanks,