Question : frac7x^3+4x+8x+2 Find the excluded values x=−2 Evaluate x+27x3+4x+8To find the excluded values,set the denominators equal to 0 x+2=0Move the constant to the right-hand side and change its sign x=0−2Solution x=−2 Show Solution Divide the polynomials 7x2−14x+32+x+2−56 Evaluate x+27x3+4x+8Solution 7x2−14x+32+x+2−56 Show Solution Find the roots x≈−0.865482 Evaluate x+27x3+4x+8To find the roots of the expression,set the expression equal to 0 x+27x3+4x+8=0Find the domain More Steps Evaluate x+2=0Move the constant to the right side x=0−2Removing 0 doesn't change the value,so remove it from the expression x=−2 x+27x3+4x+8=0,x=−2Calculate x+27x3+4x+8=0Cross multiply 7x3+4x+8=(x+2)×0Simplify the equation 7x3+4x+8=0Calculate x≈−0.865482Check if the solution is in the defined range x≈−0.865482,x=−2Solution x≈−0.865482 Show Solution