Answer:
Step-by-step explanation:
For a polynomial to be written in standard form, we arrange the terms of x from greatest degree to least.
The greatest power of x in this expression is x³. This term comes first. The next greatest is x²; this is second. Next we have the term with x¹, then the one with the variable z, and lastly the constant term.
Answer:
(x-3)(x^2-7) = x^3 -3x^2 -7x + 21
just change the sign of the root and put x in front of it, then multiply the factors all together
(x-3)(x-sqr7)(x+sqr7) roots come in conjugate pairs to eliminate irrational coefficients
(x-sqr7)(x+sqr7) = x^2-7. similar to (a-b)(a+b) = a^2-b^2
Step-by-step explanation:
7x-2(x+1)=6x+14
7x-2x-2=6x+14
5x-6x=14+2
-x=16
x=-16
The answer is option A, 4.5 inches.
This is because the smallest unit on the ruler is half an inch. We can’t assume that the green tape is stopping at a more exact point, so we have to leave the answer at what we can say for sure. Since it passes 4.5 inches, we know for sure that it is at least 4.5 inches, this being as accurate as we can promise from the units we are give.
Answer:
5+2n=7
Step-by-step explanation:
5+2n=7
7-5=2n
2=2n
2÷2=1
n=1