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Factor the polynomial $\left(x+x^3\right)$ by it's greatest common factor (GCF): $x$
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$\frac{\left(x\left(1+x^2\right)\right)^2\left(3x+7\right)}{\left(\sin\left(x^2\right)+1\right)^7\cos\left(9x+7\right)}$
Learn how to solve problems step by step online. Simplify the expression ((x+x^3)^2(3x+7))/((sin(x^2)+1)^7cos(9x+7)). Factor the polynomial \left(x+x^3\right) by it's greatest common factor (GCF): x. The power of a product is equal to the product of it's factors raised to the same power. Rewrite \frac{x^2\left(1+x^2\right)^2\left(3x+7\right)}{\left(\sin\left(x^2\right)+1\right)^7\cos\left(9x+7\right)}. Expand \left(x+x^{3}\right)^2.