Answer:
we have
Complete the square. Remember to balance the equation by adding the same constants to each side
Rewrite as perfect squares
Square Root both sides
substitute
therefore
the answer is
the solutions are
or
or
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RStep-by-step explanation:
Answer:
It’s the 2nd,3rd,and 4th
Step-by-step explanation:
I just took the quiz
You do the sum(40) subtracted by 8, the answer from that divided by 2 since Erin's two times younger.
40-8=32
32÷2=16
Then if you want to check it you do the opposite and get the same sum(40) so 16×2=32 and 32+8=40
Using BEDMAS, it would be brackets first, so anything Inside a set of brackets would be solved first, and would follow the same rule. Once the brackets have been solved, next would be the exponents. Since your brackets have been solved you can expand with the exponents. After exponents, would be anything that has to be divided or multiplied. These two operations are interchangeable based on what is more convenient or beneficial to do first. And lastly, addition and subtraction, which once again are interchangeable operations
