exam Maths Puzzle Numerical Ability

-4x^2+8x-3

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exam Other Question

directions: express each fraction as a decimal in simplest form. my fraction is 4/5 and i expressed that in simplest form as a decimal 0.8. am i correct? i need to know how to graph:

h(x)=x^4+6x^3+8x^2-x


and how to factor:
h(x)=x^4+2x^3-23x^2+2x-24



thank you!!!!!!!