mathamaticlly
21.01.2021 •
Mathematics
Factorise the following quadratic:
3x²-4x+1
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Ответ:
using the a-c method to factor the quadratic the factors of the product 3×1=3 which sum to -4 and -3 and -1 split the middle term using these terms .
3x² - 3x - x + 1
3x( x-1) -1 ( x-1 )
take out common factor ( x -1)
= (x-1) (3x-1)
3x²-4x+1 = (x-1) (3x-1)
Ответ:
9
Step-by-step explanation:
18 times 1
then divided by 2
is 9