Subsitute 2 for x
f(2)=2(2)²+5√(2-2)
f(2)=2(4)+5√0
f(2)=8+5(0)
f(2)=8
So what you're doing is you're combining
2x + x + 5 + 3x + 1 + 4x - 7 + x + 2x - 2.
What you need to do is combine like terms.
2x, x, 3x, 4x, x, and 2x are all like terms.
(x is the same as 1x)
2x + x + 3x + 4x + x +2x = 13x.
Now combine the constants.
+5, +1, -7, and -2 are the constants.
(Make sure to include the signs)
5 + 1 - 7 - 2 = -3
So you're final answer should be 13x - 3.
This is as simplified as it can get, and it's in standard form.
Hope this helped!
The question asks:
"Mark Atilius was expecting news from his friends with whom he agreed to reveal the great secret pyramids and spent his time at a nearby inn when he caught the attention of the Egyptian sitting beside him. He was even more surprised when he talked to him.
- You're Mark Atilius, are not you? she smiled - My name is Nefertari and I have a message for you from my grandmother. You should go right away if you want to get Pharaoh's belt you've been looking for all this time.
And he passed on the parchment he had just read.
<span> AA3 + 2 = AAA
CC6 + 6 = CBB
(AB | C) -> S57 -> E73-> S47-> E57-> S43-> W26-> S18->? </span>
Task: Find out the coordinates where Mark should come.<span> "
First, you need to solve for the position from which Mark starts.
You know:
</span><span>AA3 + 2 = AAA
Since 3 + 2 = 5,
553 + 2 = 555
Therefore A = 5.
Similarly:
</span><span>CC6 + 6 = CBB
Since 6+6 = 12, B = 2.
In order from the middle digit to be 2, the original one must have been 1.
Therefore B = 2 and C = 1
Hence, the starting position is: (AB, C) = (52, 1)
The following line gives you how many steps and in what direction Mark should go: S = south (negative vertical motion), N = north (positive vertical motion), E = east (positive horizontal motion), W = west (negative horizontal motion).
(52, 1)
-> S57 -> (52, -56)</span>
-> E73 -> (125, -56)
-> S47 -> (125, -103)
-> E57 -> (182, -103)
-> S43 -> (182, -146)
-> W26 -> (156, -146)
-> S18 -> (156, -164)
Hence, the coordinates that Mark should reach are (156, -164)
