(5x - 6)(5x + 6)
9
x = 25 / 3squared + 5
We can't be sure from a reading of the question.The question could be saying " ... five times [ (a number X) squared ] ...",or it could be saying " ... (five times a number X) squared ...' .In the first case, it's [ 5x2 ] .In the second case, it's [ (5x)2 ] which is equal to [ 25 x2 ].
-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
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5x cubed
It is: 25+64 = 89
(5x - 6)(5x + 6)
9
No.
(5x)2 = 25x2.
It is, as stated, x2 - 5x + 25/4 = 0
5x5=25 5x times 5x=25x
x = 25 / 3squared + 5
We can't be sure from a reading of the question.The question could be saying " ... five times [ (a number X) squared ] ...",or it could be saying " ... (five times a number X) squared ...' .In the first case, it's [ 5x2 ] .In the second case, it's [ (5x)2 ] which is equal to [ 25 x2 ].
When you subtract 7x^2 from 5x^2, you get -2x^2.