Find the complex factors of the following quadratic expressions.
(a) X^2 + 2x + 5
next equation
(b) 4x^2 - 12x + 25
2007-04-17 22:24:08 · 5 answers · asked by adsion l 1 in Science & Mathematics ➔ Mathematics
i am confused with this equation anyone kindly help me with this and i its not for my homework its revision
2007-04-17 22:35:52 · update #1
i am 24yrs old and please this is my retake and my revision i need working only for this equation i am very very poor in maths and please kindly stop saying i am lazy.
2007-04-17 22:45:59 · update #2
Question a)
x = [- 2 ± √(4 - 20) ] / 2
x = [ - 2 ± √(-16)] / 2
x = [ -2 ± 4i ] / 2
x = - 1 ± 2i
x = - 1 + 2i, x = - 1 - 2i
Question b)
x = [12 ± √(144 - 400)] / 8
x = [12 ± √(- 256)] / 8
x = [12 ± 16 i ] / 8
x = 3/2 + 2i, x = 3/2 - 2i
2007-04-17 23:06:05 · answer #1 · answered by Como 7 · 0⤊ 0⤋
HOW OLD ARE YOU?
im 12 n i can answer that....
dont be lazy do your own homework
2007-04-17 22:43:11 · answer #2 · answered by ari 1 · 0⤊ 0⤋
a) roots are (-2+/-(4-20)^0.5)/2= (-2+/-2i)/2
so the compex factors are -i and +i
b) roots are (6 +/- (144-200))/8
the complex parts are (i (56)^0.5 )/8 and -(i(56)^05)/8
2007-04-17 22:36:45 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
x = sq. route 55
2007-04-17 22:30:00 · answer #4 · answered by get_u_thr 2 · 0⤊ 0⤋
Don't use this to do your homework
2007-04-17 22:33:07 · answer #5 · answered by ask432 1 · 0⤊ 0⤋