Question Simplify the expression −555t2 Evaluate 75t2−90t2×7Multiply the terms 75t2−630t2Collect like terms by calculating the sum or difference of their coefficients (75−630)t2Solution −555t2 Show Solution Find the roots t=0 Evaluate 75t2−90t2×7To find the roots of the expression,set the expression equal to 0 75t2−90t2×7=0Multiply the terms 75t2−630t2=0Subtract the terms More Steps Simplify 75t2−630t2Collect like terms by calculating the sum or difference of their coefficients (75−630)t2Subtract the numbers −555t2 −555t2=0Change the signs on both sides of the equation 555t2=0Rewrite the expression t2=0Solution t=0 Show Solution