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How do you factor 4x squared minus 81?
4x^(2) - 81 First remember the two numbers are both squared numbers. 4 = 2^(2) & 81 = 9^(2) Hence (2x)^(2) - 9^(2) Next remember two squared terms with a negative(-) between them , will factor. Hence (2x - 9)(2x + 9) Note the two different signs. NB Two squared terms with a positive (+) between them does NOT factor. .
The square root of 81 is how much less than 7 squared?
well, the square root of 81 is 9, and seven squared is 49, so it wud be 40
What is 81 squared?
81 x 81 = 6561
What is negative 9 squared?
-9 squared = 81(-9)^2 = (-9) * (-9) = 81
How do you evaluate 81 squared?
812 = 81 x 81 = 6,561
How do you factor 81 minus 25u squared?
(9 - 5u)(9 + 5u)
How do you factor the expression 81 minus M square?
(81 - m2) = (9 - m)(9 + m)
How do you factor 2xcubed minus x squared minus 162x minus 81?
I believe it is prime as you have written it. change the end to + 81 and it factors as (2x - 1)(x-9)(x+9)
Factor 9x squared minus 6xy plus y squared minus 81?
9x2 - 6xy + y2 - 81 = (3x - y)2 - 81 = (3x - y - 9)*(3x - y + 9)
How do you factor 4x squared minus 36x plus 81?
(2x - 9)(2x - 9) or (2x - 9)2
How do you factor 4x squared minus 81?
4x^(2) - 81 First remember the two numbers are both squared numbers. 4 = 2^(2) & 81 = 9^(2) Hence (2x)^(2) - 9^(2) Next remember two squared terms with a negative(-) between them , will factor. Hence (2x - 9)(2x + 9) Note the two different signs. NB Two squared terms with a positive (+) between them does NOT factor. .
What is nine squared times two minus four squared?
81 x 2 - 16 = 146
What and -9 squared?
The expression "-9 squared" means to multiply -9 by itself. When you calculate this, you get ((-9) \times (-9) = 81). Therefore, -9 squared equals 81.
What is 9x squared minus 6xy plus y squared minus 81 factored as?
9x2 - 6xy + y2 - 81 = (3x - y)2 - 92 = (3x - y - 9)(3x - y + 9)
What is the solutions to y plus 3 squared minus 81?
78 minus78
What is the solutions to y plus 2 squared minus 81?
79, -79
What is 9x squared minus 6xy plus y squared minus 81?
The answer? There is no "answer" There cannot be an answer because they are all different. In order to make calculations, the variables have to be the same. x squared, xy, y squared are the variables, and none of them match. Therefore your "answer" must look like this: 9x squared - 6xy + y squared - 81. Hope I Helped :D
