Multiply by LCD: Multiply both sides of the equation by the least common denominator (LCD), which is (3x+4)(3x2+7x+4), to clear the fractions.(x+3x+41)×(3x+4)(3x2+7x+4)=(3x2+7x+4x2+1)×(3x+4)(3x2+7x+4)
Simplify after distribution: Simplify both sides of the equation after distributing the LCD. x(3x+4)(3x2+7x+4)+(3x2+7x+4)=(x2+1)(3x+4)
Distribute x and simplify: Distribute x into (3x+4)(3x2+7x+4) and simplify the left side of the equation.3x3+4x2+7x2+28x+16x+3x2+7x+4=(x2+1)(3x+4)
Combine like terms: Combine like terms on the left side of the equation.3x3+14x2+51x+4=(x2+1)(3x+4)
Distribute and simplify: Distribute (x2+1) into (3x+4) on the right side of the equation.3x3+14x2+51x+4=3x3+4x2+3x+4
Subtract and set to zero: Subtract 3x3, 4x2, 3x, and 4 from both sides of the equation to get all terms on one side and set the equation to zero.3x3+14x2+51x+4−(3x3+4x2+3x+4)=0
Combine like terms: Combine like terms after subtraction.14x2+51x+4−4x2−3x−4=010x2+48x=0