factorise the following x3+x-3x2-3
Answers
Answered by
0
Answer:
x
3
+x–3x
2
–3
Here x is common factor in x^3 + x and – 3 is common factor in –3x^2 – 33x
2
–3
x^3 – 3x^2 + x – 3x
3
–3x
2
+x–3
x^2 (x – 3) + 1(x – 3)x
2
(x–3)+1(x–3)
Taking ( x – 3) common
(x – 3) (x^2 + 1)(x–3)(x
2
+1)
Therefore x^3 + x – 3x^2 – 3 = (x – 3) (x^2 + 1)x
3
+x–3x
2
–3=(x–3)(x
2
+1)
Step-by-step explanation:
this is the answer
Answered by
1
Answer:
x(3)+x-(3)(x)(2)-3
3x+x-6x-3
4x-6x-3
-2x-3=0
-(2x+3)=0
2x+3=0
if you want the value of x then,
2x+3=0
2x= -3
x=-3/2
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