75r^2-48 You can take out 3.So... 3(25r^2-16) 3-parenthesis-25r squared-minus-16-parenthesis (:
It is the difference of squares. (x-4) and (x+4) <--- answer
If the question could more exactly be phrased as, "What is the value of x when 9x2 - 16 = 0", the answer is, x = 4 or -4. This answer can be found by factoring 9x2 - 16 into (3x + 4)(3x - 4) and setting each factor equal to zero.
In one bracket, write 16 times the square root of 2 minus 3x. In the other one, write 16 times the square root of 2 plus 3x.
(x4 - 16) = (x2 + 4) (x2 - 4) = (x2 + 4) (x + 2) (x - 2)
It is: 5(x^2 -16)
2(x^2 - 8)
75r^2-48 You can take out 3.So... 3(25r^2-16) 3-parenthesis-25r squared-minus-16-parenthesis (:
It is the difference of squares. (x-4) and (x+4) <--- answer
The square root of 25a squared is 5a. The square root of 16 is 4.So the answer is (5a+4)(5a-4)
14x2-7x2-16 7x2-16 (this can't be simplified any more)
It can't be factored because its discriminant is less than zero.
62 - 16 = 20
Pull out the common factor of 2 ... 2(y^2+6y-16) Then just factor (y^2+6y-16) ... (y-2)(y+8)
(b-4) squared
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
5 squared is 25 4 squared is 16 25-16= 9 the square root of 9 is 3.