Answer:
x = -4 or 2
Step-by-step explanation:
-4x² + 10x − 40 = -9x²
First, move the x terms to one side and the constant to the other.
5x² + 10x = 40
Divide by the leading coefficient:
x² + 2x = 8
Take half of the b coefficient, square it, then add to both sides.
(2/2)² = 1
x² + 2x + 1 = 8 + 1
x² + 2x + 1 = 9
Factor the perfect square:
(x + 1)² = 9
Solve for x:
x + 1 = ±3
x = -1 ± 3
x = -4 or 2
6=360<span>
60=3600
600=36000
6000=360000
60000=3600000
And so on and so on.
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The answer to your question is 15.56
square root of 50 is 7.07 and square root of 72 is 8.49
Formula for the area of a circle is,
pi×radius squared
example,
radius of a circle is 2cm what's the area?use 3.14 as pi
2squared×pi
=2squared×3.14
=12.56cm squared..
hope this helps.....
