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MilaCoolNessBest ResponseYou've already chosen the best response.0
whats the question
 one year ago

creightonBest ResponseYou've already chosen the best response.0
what is the discriminate of this equation: y=4(x3)^2+8
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
the discriminant is 2128 do you want me to explain it as well?
 one year ago

AvvaBest ResponseYou've already chosen the best response.0
you can simply calculate the discriminate \[b^{2}  4ac\] by putting the equation in the form \[y=ax^{2} + bx +c\]
 one year ago

creightonBest ResponseYou've already chosen the best response.0
Please explain Sorry had bad internet
 one year ago

AvvaBest ResponseYou've already chosen the best response.0
@zainulafaq is it 2128 or 128 ?
 one year ago

creightonBest ResponseYou've already chosen the best response.0
does the B and C stand as coordinates
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
firstly expand the equation to standard for i.e \[a x^{2} +bx +c\] which in this case is \[4x^2 +24x 28\]
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
a, b, c are coefficients of \[x^2 , x \] and constant respectively in the expanded form . .
 one year ago

AvvaBest ResponseYou've already chosen the best response.0
no they are not coordinates it tells u the nature of the roots whether they are real or imaginary
 one year ago

creightonBest ResponseYou've already chosen the best response.0
k I got it so far Do we solve for x?
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
then use the formula for discriminant as @Avva has suggested to find value of discriminant a=4, b24, c= 28
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
No if the question asks for discriminant you just have to tell the numerical value of \[[b^2  4ac] \]
 one year ago

creightonBest ResponseYou've already chosen the best response.0
k so if we plug in the numbers 24^24(4)(28)
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
exactly thats perfect
 one year ago

creightonBest ResponseYou've already chosen the best response.0
and we simplify to get our answer right
 one year ago

creightonBest ResponseYou've already chosen the best response.0
@zainulafaq so is it 130 and my work is shown below @zainulafq 24^24(4)(28) 576+16(28) 576448=130
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
all of it is excellent except for last step . . 576448 = 128 not 130 . . .
 one year ago

creightonBest ResponseYou've already chosen the best response.0
whoops so 128 is my answer
 one year ago

zainulafaqBest ResponseYou've already chosen the best response.1
yup now its fine :)
 one year ago
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