Explaining step by step the simplest form of the expression 9r(r+3)-2r(r-4)
1 answer:
For simplest form, the first thing you'll want to do is get rid of the parentheses:
<span>9r(r + 3) - 2r(r - 4) = 9r^2 + 27r - 2r^2 + 8r
Now we want to combine like terms:
</span><span>9r^2 + 27r - 2r^2 + 8r = 7r^2 + 35r</span>
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Answer:
just add 386+165 which equals 551
Step-by-step explanation:
90% of 10 is 9 have a great day
When the centre A(xa,ya) and radius are given, the general equation is
(x-xa)^2+(y-ya)^2=r^2
55/4 or 13 3/4
Hope thats right
