Question

Simplify:- 3x(4x -5) + 3 and find its value for (i) x=3 (ii)x=0

Answer 1

Answer:

3x(4x-5) +3

taking first value x=3

first

=12x^2-15x+3

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

=12(9) -45+3

=108-42

=66

second

x=0

=12(0) ^2-15(0) +3

=12(0) -0+3

=0-0+3

=3

Step-by-step explanation:

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