Simplify , -4a^2b^2 + 6x^2y^3 - 15a^2b^2 + 3x^2y^2 + ab

ab + 3x²y² + 6x²y³ - 19a²b²

Step-by-step explanation:

All you do is combine like-terms:

-4a²b² - 15a²b² = -19a²b²

-3x²y² + 6x²y² = 3x²y²

Notice that ab and 6x²y³ do not have a like-term to pair up with. Moreover, if you are wondering why 3x²y² is written there instead of a 9x²y², I will show you why:

[-4a²b² + 6x²y³] - [15a²b² + 3x²y²] + ab

Polynomials are ALWAYS separated by grouping symbols. There is one more thing you should know about subtracting polynomials. Whenever you are subtracting polynomials, you just distribute the negative to avoid confusion.

I am joyous to assist you anytime.

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90