Answer:
-1
Step-by-step explanation:
We need to simplify the given expression . The given expression is ,
Here we can see that the power of the both exponent is same that is (2n+1) . Recall the property of exponents ,
Using this property , we have ,
This can be written as ,
Simplifying using ( a+b)(a-b) = a² - b² ,
Subtracting the numbers inside the brackets ,
Now we know that every odd number is in the form of 2n -1 , where n is any integer. Therefore , the <u>power is odd</u> .
Since the base is (-1) , for even power it is 1 and for odd power it is -1 . Therefore the final answer is ,
<u>Hence </u><u>the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>(</u><u>-</u><u>1</u><u>)</u><u> </u><u>.</u>
Answer:
Common factor
Factor by grouping
Factor by grouping
−
2
−
2
+
1
-x^{2}-2x+1
−x2−2x+1
−
1
(
2
+
2
−
1
)
{\color{#c92786}{-1(x^{2}+2x-1)}}
−1(x2+2x−1)
Solution−
-1(x²+ 2x-1 )
Answer:
B 9/10
Step-by-step explanation:
1/5 is equivalent to 2/10.
then just add the numerators.
Answer:
He is correct
Step-by-step explanation:
72 girls and 84 boys
Divide both numbers by 12
6 : 7
He is correct
Answer:
Work in pairs. Look at the different types of food. Which ones do you think are thrown away most often
and why?
1 dairy products: milk, cheese, 3 fruit
6 dry pasta, rice
butter, yoghurt, eggs
meat
7 biscuits, cakes
2 vegetables
5 fishWork in pairs. Look at the different types of food. Which ones do you think are thrown away most often
and why?
1 dairy products: milk, cheese, 3 fruit
6 dry pasta, rice
butter, yoghurt, eggs
meat
7 biscuits, cakes
2 vegetables
5 fish