Problem to solve:
Learn how to solve special products problems step by step online.
Learn how to solve special products problems step by step online. Solve the product (a+3b)(a-3b). The sum of two terms multiplied by their difference is equal to the square of the first term minus the square of the second term. In other words: (a+b)(a-b)=a^2-b^2, where:<ul><li>The first term (a) is a.</li><li>The second term (b) is 3b.</li></ul>Then:. The power of a product is equal to the product of it's factors raised to the same power. Calculate the power 3^2. Multiply -1 times 9.