Question 394929
{{{(0.04x^3-0.05x^2 + 0.09x) - (0.03x^3 +0.05x^2 -5)}}}.

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remove the parenthesis
{{{0.04x^3-0.05x^2 + 0.09x - 0.03x^3 -0.05x^2+5)}}}.
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{{{0.04x^3-0.03x^3-0.05x^2-0.05x^2+0.09x+5}}}
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{{{0.01x^3-0.1x^2+0.09x+5}}}
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