Answer:
D. -10, 10
Step-by-step explanation:
Instead of inserting values into x to solve, let's isolate x.
In order to do this, we must take the square root of both sides.
To find the square root of 100, we must figure out what = 100 when multiplied by itself. Reminder, it can be both a positive or a negative square root, as positive times positive is a positive, and negative times negative is a positive.
The square root of 100 is -10 or 10, as 10 x 10 or -10 x -10 = 100.
<u><em>Hope this helps! :)</em></u>
Step-by-step explanation:
Remainder when p(x) is divided by (x+2) is -29
Step-by-step explanation:
p(x) = x^{3} - 2x^{2} + 8x + kx3−2x2+8x+k
When p(x) is divided by (x-2), remainder is 19.
p(x - 2 = 0) gives the remainder when p(x) is divided by (x-2)
x - 2 = 0
x = 2
p(x-2=0) = p(2) = 2^{3} - 2(2^{2}) + 8(2) + k23−2(22)+8(2)+k = 19
8 - 8 + 16 + k = 19
k = 3
p(x) = x^{3} - 2x^{2} + 8x + 3x3−2x2+8x+3
p(x + 2 = 0) gives the remainder when p(x) is divided by (x+2)
x + 2 = 0
x = -2
p(x+2=0) = p(-2) = (-2)^{3} - 2((-2)^{2}) + 8(-2) + 3(−2)3−2((−2)2)+8(−2)+3
p(-2) = - 8 - 8 - 16 + 3 = -29
Remainder when p(x) is divided by (x+2) is -29
Hello there!
5 + 3x - x = 25
First, combine like-terms.
3x - x = 2x
Our goal is to isolate and solve for x.
2x + 5 = 25
Subtract 5 from both sides to isolate x.
2x = 20
Divide both sides by 2 to solve for x.
x = 10
I hope this helps!
Answer:
Step-by-step explanation: