Use FOIL to explain how to find the product of (a + b)(a − b). Then describe a shortcut that you could use to get this product without using FOIL.

Multiply the first, outside, inside, and last terms of the binomials.

Multiply a times a, a times -b, b times a, and b times -b.

This is the same as just squaring a and squaring b.

A shortcut is to add a squared and b squared

Step-by-step explanation:

Feel free to copy and paste Have a great day!!   : )

85.3-64 = 21.3

so laura has already added 85.3 grams of chocolate powder and she has gone over the amount specified in the recipe by 21.3 grams

hope i ! have a great  day!