Answer:
a2 - 3ab + b2
Step-by-step explanation:
just saying the 2s are squared :)
So basically it takes 10 people to paint a whole building. Forget about the 5 days. That's just there to confuse you. You have to first find out how much of a building can one person paint so, 1/10. So that means that 7 people can paint 7/10 of a building in 5 days
Answer:
Josh has played 12 matches more, not 12 times as many as her.
Step-by-step explanation:
Lisa said times, making the statement incorrect.
No because it would be
if you knew that
ax^2+bx+c was a trinomial square, then the factored form would be

or

so
if w^2-9w+81 is perfect square, factored form is either

or

aka

or
expand them
(x+9)^2=x^2+18x+81, wron middle term
(x-9)^2=x^2-18x+81 wrong
so it is not
Here is what the answer to your question is:
7x10x1=70