(-7x² + 3) + (4x² + 2x - 1)
-7x² + 3 + 4x² + 2x - 1
(-7x² + 4x²) + (3 - 1) + 2x collect like terms
-3x² + 2x + 2
hope this helps, God bless!
They are both a multiple of the number 3
the exponent tells you how many times to multiply the base number by itself.
for 35 the base number or base is 3 and the exponent is 5
the value is 3 x 3 x 3 x 3 x 3 which has 3 multiplied by itself five times
So your question is going in the opposite direction.
Rather than going from a power and expanding it, we have the expanded form and we are asked to write the power
3 x 3 x 3 is written 33
<h3>Write an equation that will match the story problem</h3>

<em><u>Solution:</u></em>
Given that,
David goes into a candy store with $5.00
Total amount with David = $ 5
He buys 9 peppermints for $0.15 each
And some sour candies. each sour candy costs $0.25
The equation is:
Let the number of sour candies bought be "x"
Then,
Remaining amount after buying pepper mint = 
Each sour candy cost $0.25
<em><u>Now the number of sour candies bought is:</u></em>

x = 14.6
Thus david can buy 14 sour candies
<em><u>Thus the equation that will match the story problem is:</u></em>

Where, "x" means number of sour candies bought