Question

Evaluate 3 x square - 4 x + 1 for i)x = 4, ii) x = - 2 , iii ) x = 0
solve
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Answer 1

Answer:

3x²-4x+1=0

=>3x²-3x-x+1=0 (by middle term factorisation)

=>3x(x-1)-1(x-1)=0

=>(3x-1)(x-1)=0

=>x=1/3. =>x=1

THANK YOU

Answer 2

Answer:

let, f(x) = 3x^2 -4x+1

f(4) = 3(4)^2-4*4+1

= 48-16+1

=33

f(-2) = 3(-2)^2-4(-2)+1

= 12+8+1

= 21

f(0) = 3(0)^2-4*0+1

= 0-0+1

= 1