Answer:
x = √11
Step-by-step explanation:
2x² - 1 = 21
add 1 to both sides
2x² - 1 + 1 = 21 + 1
simplify
2x² = 22
x² = 22 / 2
x = √11
Find the indicated intersection or union {q, s, u, v, w, x, y, z} ∪ {q, s, y, z}
bonufazy [111]
The union of two sets combines the members of both sets. The elements
already belong to the first set, so the intersection is just
Answer:
ok well your answer would be postive
Step-by-step explanation:
because it would go up the more you sell andlets say you didnt sell at lot to would be postive then slowly drift to negtive
Hello,
y=x²-25
==>x=y²-25 ==>y=±√(x+25)
Answer B: ±square root of the quantity x plus 25
Answer:
Step-by-step explanation:
We are required to subtract 
.
![[2x^4-8x^2y^2-y^4]-[-6x^4-3x^2y^2+5y^4-6x]](https://tex.z-dn.net/?f=%5B2x%5E4-8x%5E2y%5E2-y%5E4%5D-%5B-6x%5E4-3x%5E2y%5E2%2B5y%5E4-6x%5D)
<u>Step 1:</u> Open the bracket, Take note of the signs
![[2x^4-8x^2y^2-y^4]-[-6x^4-3x^2y^2+5y^4-6x]\\2x^4-8x^2y^2-y^4+6x^4+3x^2y^2-5y^4+6x](https://tex.z-dn.net/?f=%5B2x%5E4-8x%5E2y%5E2-y%5E4%5D-%5B-6x%5E4-3x%5E2y%5E2%2B5y%5E4-6x%5D%5C%5C2x%5E4-8x%5E2y%5E2-y%5E4%2B6x%5E4%2B3x%5E2y%5E2-5y%5E4%2B6x)
<u>Step 2:</u> Collect like terms
<u>Step 3:</u> Simplify
