A) a is greater than b
B) b is greater than a
C) a and b are equal
D) The relationship cannot be determined from the information given.
2007-05-16 03:26:59 · 8 answers · asked by ♫ Think happy thoughts ♪ 3 in Science & Mathematics ➔ Mathematics
x^2 + 5x - 14 = (x + 7)(x - 2)
so a is larger
2007-05-16 03:30:38 · answer #1 · answered by Ana 4 · 0⤊ 0⤋
The reason you know the signs in front of a and b are different is because of the negative sign in front of the 14. That is the only way you could get a negative sign there.
The "+5" comes from the sum of "a" and "b". So in order for the 5 to be positive, the larger number would have to be positive, which is "a". If "b" was larger, then the numeral in front of "x" would be negative.
2007-05-16 03:44:19 · answer #2 · answered by kdog 4 · 0⤊ 0⤋
The factored quantities are (x+7) and (x-2). Therefore
a=7 and b=2
2007-05-16 03:37:37 · answer #3 · answered by 2old4games 2 · 0⤊ 0⤋
(x + 7).(x - 2)
A
7 > -2
a > b
2007-05-16 06:47:51 · answer #4 · answered by Como 7 · 0⤊ 0⤋
A= 7
B=2
A is larger
(X+A)(X-B) === X2-BX+AX-AB
you must solve this first using the FOIL Method..
F- first pairs on inside....x2
0- outside pairs .....bx
I- inside pairs.....ax
l- Last pairs....ab
Take the equation and find 2 number that would fit in the equation and cancel it out
2007-05-16 03:43:00 · answer #5 · answered by ChantelleMarie 1 · 0⤊ 0⤋
Have you added 2 to everything yet? Once you add 2 to everything, multiply it by pi. Add 2 again. Then take up painting.
2007-05-16 03:35:24 · answer #6 · answered by Phantom 2 · 0⤊ 0⤋
first of all u should read that the multipication of two polynomials are commutative. so
(x + a)(x - b) and (x - b)(x + a) are same
here u can compare n get
a=7 n b=2
there for A is true
2007-05-16 03:40:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋
A) is answer
2007-05-16 03:31:00 · answer #8 · answered by rwbblb46 4 · 0⤊ 0⤋