Answer:
Step-by-step explanation:
Factor it by first setting it equal to 0:
Now subtract 9 from both sides:
Divide both sides by 4:
Then take the square root of both sides:
x = ±
, which of course is not allowed. Therefore, we have to allow for the imaginary numbers in this solution. Knowing that,
x = ±
is an equivalent radicand, we can now replace -1 with its imaginary counterpart:
x = ±
Each one of the elements in the radicand are perfect squares, so we simplify as follows:
x = ±
And there you go!
When multiplying fractions, multiply row by row. 5×1=5 over 3×7=21. So we get positive (becayse negatives cancel each other) 5/21. We can't simplify it any further so thats the answer. Hope this helps!
Answer:
y=147/17
Step-by-step explanation:
-17(y-2)=-177+64
-17y+34=-113
-17y=-113-34
-17y=-147
17y=147
y=147/17
Answer:
the answer is e=mc^2 I think
