Multiply the parentheses then collect like terms
(x+4y+z) (x-7y)
x^2-7xy+4xy-28y^2+xz-7yz
x^2-3xy-28y^2+xz-7yz
Answer:
6 positive
Step-by-step explanation:
if u subtract a negative you are really just adding a positive. ok? ok.
The answer is -5
Step-by-step explanation:
First, let's understand about what are rational number and Integer.
Both rational and Integer are part or rather say subset of Real Number. Real Number can be broken into these categories:
I will not talk about Irrational since It is a bit off-topic for the question.
Rational can be broken into:
- Integer (Positive, Zero and Negative)
- Fraction
Integer is a subset of Rational Number and Real Number. But what is really Integer?
Integer is a whole number or any numbers that don't have decimal, fraction. Integer can be ...,-4,-3,-2,-1,0,1,2,3,4,...
The three dot symbol refers to being endless or countable infinity.
Now that you see Integer cannot be fraction, decimal.
Therefore, the answer is -5
