Answer:
Step-by-step explanation:
2n+5=35
2n=35-5
2n=30
n=15
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Answer:
<em>{ - 2 , 8 } </em>
Step-by-step explanation:
( x² - 6x ) = 2
4² = ( x² - 6x )
x² - 6x - 16 = 0
- 6 = - 8 + 2
- 16 = - 8 * 2
( x - 8 )( x + 2 ) = 0 ⇒
= - 2 ,
= 8
<em>{ - 2 , 8 }</em>
The first the last and the 2nd last
You cannot simplify this but you can factorise it:
9x^6 (x^2 - 2)