find hcf and lcm of 2x square - x - 1 , 4x square + 8x + 3
Answers
Answered by
15
2x²-x-1 = 2x²-2x+1x-1
= 2x(x-1)+1(x-1)
= (x-1)(2x+1)
4x²+8x+3 = 4x²+2x+6x+3
=2x(2x+1)+3(2x+1)
(2x+1)(2x+3)
HCF is (2x+1)
LCM is (x-1)(2x+1)(2x+3)
= 2x(x-1)+1(x-1)
= (x-1)(2x+1)
4x²+8x+3 = 4x²+2x+6x+3
=2x(2x+1)+3(2x+1)
(2x+1)(2x+3)
HCF is (2x+1)
LCM is (x-1)(2x+1)(2x+3)
Similar questions