Find what value of x in the expression x^2-2x+3
Answers
Answered by
1
To factor , consider the factors of the constant term - 3 which sum to give the coefficient of the x term +2
factors of - 3 are ± (1 , 3 )
The required factors are +3 and - 1 ,as they sum to +2.
⇒x2+2x−3=(x+3)(x−1)
This may be confirmed by distributing the brackets.
factors of - 3 are ± (1 , 3 )
The required factors are +3 and - 1 ,as they sum to +2.
⇒x2+2x−3=(x+3)(x−1)
This may be confirmed by distributing the brackets.
genious2000:
it is +3 not - 3
ok.
Similar questions