Simplification
Expand and simplify: (-7y - 8) (y - 4)
To expand an expression, use FOIL method.
F - First
- Multiply the first term in each expression inside the parentheses.
-7y and y are the first terms in each expression.
(-7y)(y) = -7y²
O - Outside
- Next is to multiply the terms outside. (The first term in the first expression and the last term in the second expression)
-7y is the first term in the first expression
-4 is the last term of the second expression
(-7y)(-4) = 28y
I - Inside
- The next step is to multiply the terms inside. (The last term in the first expression and the first term in the last expression)
-8 is the last term in the first expression
y is the first term in the second expression
(-8)(y) = -8y
L - Last
- Last step is to multiply the last term in each expression.
-8 is the last term of the first expression
-4 is the last term of the second expression
(-8)(-4) = 32
Combine all simplified terms.
- -7y² + 28y - 8y + 32
- -7y + 20y + 32
Answer:
Wxndy~~
