(8w + 7)(8w - 7)
7 squared = 49
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored
27v2 - 147 = 3*(9v2 - 49) = 3*(3v - 7)*(3v + 7)
7 squared is 49 and 5 squared is 25. So the difference is 49-25=24
(d+7)/(d2-49)(d+7)/(d+7)(d-7)1/(d-7)
It is a difference of squares. 9x^2-49=(3x+7)(3x-7)
(8w + 7)(8w - 7)
42
7 squared = 49
pi squared
42
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored
well, the square root of 81 is 9, and seven squared is 49, so it wud be 40
27v2 - 147 = 3*(9v2 - 49) = 3*(3v - 7)*(3v + 7)
This is called an inequality. If x squared is greater than or equal to 49, then x is plus or minus 7 or greater than plus 7 or less than - 7.
Seven squared = 7 x 7 = 49