Answer:
<em>x ∈ ( - ∞ , - 8 ) ∪ ( - 8 , 0 ) ∪ ( 0 , 8 ) ∪ ( 8 , ∞ ) </em>
Step-by-step explanation:
x³ - 64x = x( x² - 64 ) ≠ 0 ⇒ x ≠ 0 and x ≠ ± 8
<em>x ∈ ( - ∞ , - 8 ) ∪ ( - 8 , 0 ) ∪ ( 0 , 8 ) ∪ ( 8 , ∞ )</em>
d or c hope you get it right
l-4l+l-3l??
x = 7
Hi,
7x - 7 = 4x + 14
3x - 7 = 14
3x = 21
I hope this helps :)
Explanation:
Each pencil has a profit of Rs 1.25 since
Multiply that result with 20 to get the final answer shown above in bold.