Final answer to the problem
$f\left(x\right)=25x^2+x^{4}+\cos\left(3x\right)^2-10x^{3}-10x\cos\left(3x\right)+2x^2\cos\left(3x\right)$
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Step-by-step Solution
How should I solve this problem?
- Choose an option
- Write in simplest form
- Solve by quadratic formula (general formula)
- Find the derivative using the definition
- Simplify
- Find the integral
- Find the derivative
- Factor
- Factor by completing the square
- Find the roots
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1
Expand the trinomial using the formula $\left(a+b+c\right)^2 = a^2 + b^2 + c^2 + 2ab + 2ac + 2bc$
Learn how to solve algebraic expressions problems step by step online.
$f\left(x\right)=\left(5x\right)^2+\left(-x^2\right)^2+\left(-\cos\left(3x\right)\right)^2+2\cdot 5\cdot -1xx^2+2\cdot 5\cdot -1x\cos\left(3x\right)+2\cdot - -1x^2\cos\left(3x\right)$
Learn how to solve algebraic expressions problems step by step online. Simplify the expression f(x)=(5x-x^2-cos(3x))^2. Expand the trinomial using the formula \left(a+b+c\right)^2 = a^2 + b^2 + c^2 + 2ab + 2ac + 2bc. Multiply 2 times 5. Multiply 10 times -1. Multiply 2 times 5.
Final answer to the problem
$f\left(x\right)=25x^2+x^{4}+\cos\left(3x\right)^2-10x^{3}-10x\cos\left(3x\right)+2x^2\cos\left(3x\right)$
