Question

Simplify 3x (5x-6)+5and find its values for (i)x=3 (ii) x=(-5)
$3 \times (5 \times - 6) + 5and \: find \: its \: values \: for \: 1x = 3$
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Answer 1

Answer:

(i)86

(ii)470

Step-by-step explanation:

3x(5x-6)+5

15$x^{2}$-18x+5

(i)For x=3

3*3(5*3-6)+5

=9(15-6)+5

=9(9)+5

=81+5

=86

(ii)For x= -5

3*-5{(5*-5)-6}+5

=-15(25-6)+5

=(-15*-31)+5

=465+5

=470