Maths qns (algebra)

StarPuppy SG

Factorise 2x(2)-3x-5

2x(squared) -3x -5

so how should i do? I always bad memory when doing this sums...doing for past..god knows how long..still CMI

anhydrouscoppersulphate SG

ans is x=2.5 or -1

stellazio SG

2X^2-3X-5

(2x-5)(X+1).. Laughing

dragg SG

i dont even understand the question.

Embarassed

StarPuppy SG

aiya...i got the answer but its always step-step method i dunno how to do... Embarassed

anhydrouscoppersulphate SG

you can input the ques to get the ans in the calculator. but ur calculator must be Casio fx-95MS

renorenal SG

Sorry Star, if you were to ask me this question 7 years ago, I could have answered you perfectly... now I just feel blank Mr. Green Laughing

Forgotten liauzz...

stellazio SG

cross factorize..

2X -5 | -5X
1X +1| +2X
2X^2 -5 -3X

renorenal SG

Someone come out with the work-up?

anhydrouscoppersulphate SG

aiya this is babies’ question

renorenal SG

Don't say like that lar... ppl dunno mar... Smile

StarPuppy SG

aiya...SGF ppl some lidat...used to it liao... Smile Smile Smile

launtpc SG

Edit: Made by me.

stellazio SG

hanor hanor..not like me so helpful.. Laughing

anhydrouscoppersulphate SG

haha easy

StarPuppy SG

thanks...got any other way....i am bad at that Laughing

stellazio SG

wrong la.. Laughing

u expand your 2 bracket equations,it becomes +3X not -3X..

launtpc SG

Where wrong? Clever you do...

anhydrouscoppersulphate SG

sorry u failed ur maths

stellazio SG

u just expand out your equation its wrong liao..i already did above.. Laughing