Could x^2+5x+6.25 be simplified into a binomial?
2007-07-11 15:45:31 · 4 answers · asked by jumba 1 in Science & Mathematics ➔ Mathematics
What about x^2-13x+42.25? Can this be expressed as a binomial?
2007-07-11 15:47:53 · update #1
Thanks Scooby for the help.
2007-07-11 15:55:30 · update #2
Karen M: Thank you for your help.
2007-07-11 15:57:33 · update #3
first one is (x + 2.5)(x + 2.5)
2007-07-11 15:50:08 · answer #1 · answered by Anonymous · 1⤊ 0⤋
x² + 5x + 6.25
= x² + 5x + 25 / 4
= (x + 5/2).(x + 5/2)
= (x + 5/2)²
x² - 13x + 42.5
= x² - 13x + 169 / 4
= (x - 13/2).(x - 13/2)
= (x - 13/2)²
2007-07-11 22:04:16 · answer #2 · answered by Como 7 · 0⤊ 0⤋
x^2+5x+6.25
Multiply and divide by 4:
= 1/4 (4x^2 + 20x + 25)
=1/4 (2x+5)(2x+5)
= ((1/2)x + 5/4) (2x+5)
2007-07-11 15:50:14 · answer #3 · answered by whitesox09 7 · 1⤊ 0⤋
(x - 6.5) ^2 is the second one
2007-07-11 15:52:10 · answer #4 · answered by ktm 3 · 1⤊ 0⤋