<span>2(3y - 7) - 5y(2 - y)
2*3y - 2*7 - 5y*2 -5y*(-y)
6y - 14 - 10y + 5y</span>²
5y² + 6y - 10y - 14
<span>5y² -4y - 14</span>
Answer:
See below
Step-by-step explanation:
625 = 25^2, or (5^2)^2 = 5^4
Answer:
±2sqrt(10) = x
Step-by-step explanation:
40 - x^2 = 0
Add x^2 to each side
40 - x^2+x^2 = x^2
40 = x^2
Take the square root of each side
sqrt(40) = sqrt(x^2)
±sqrt(40) = x
±sqrt(4) sqrt(10) = x
±2sqrt(10) = x
Answer:
chicken nugget
Step-by-step explanation:
<h3>
Answer: 
</h3>
3*sqrt(7)
3 times the square root of 7
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Explanation:
I'm assuming the V stands for square root. You can write sqrt(63).

The idea is to factor 63 in such a way that one factor is the largest perfect square possible, that way we can pull the root apart to simplify as shown above. The rule I used for the second step is 