Question

Simplify : 3x (4x-5)+3 and find the value for 1) X=3​

Answer 1

Answer:

3(3)[4(3)-5]+3

9(12-5)+3

63+3

66

Answer 2

$3x (4x-5)+3$

$12x^2-15x+3$

Given x=3

$12(3)^2-15(3)+3$

$108-45+3=0$

$33+3=0$

$\:\:\:\:36$

Answer 3

$3x (4x-5)+3$

$12x^2-15x+3$

Given x=3

$12(3)^2-15(3)+3$

$108-45+3=0$

$33+3=0$

$\:\:\:\:36$