Write Problem: Write down the original problem and prepare to distribute the subtraction across the terms in the second parentheses.(9t2+6t+5)−(2t2+6t)=9t2+6t+5−2t2−6t
Combine Like Terms: Combine like terms by subtracting the coefficients of the t2 terms and the t terms.9t2−2t2+6t−6t+5=7t2+0t+5
Simplify Expression: Simplify the expression by removing the term with a zero coefficient.7t2+0t+5=7t2+5