Question

Factorize i) 2x^2-x-1
ii) 2x^2-7x+5​

Answer 1

SOLUTION:-

FACTORIZE;

1. 2x² -x -1

=) 2x² - x -1

=) 2x² -2x+ x -1

=) 2x(x-1) +1(x-1)

=) (x-1) (2x+1) [answer]

2. 2x² -7x +5

=) 2x² -2x-5x +5

=) 2x(x-1) -5(x-1)

=) (x-1)(2x-5) [answer]

Hope it helps ☺️

Answer 2

Answer:

i) 2x^2-2x-1

=2x^2-2x+x-1

=2x(x-1) +1(x-1)

=(2x+1) (x-1)

ii) 2x^2-7x+5

=2x^2-2x-5x+5

=2x(x-1)-5(x-1)

=(2x-5) (x-1)