Question

2x(3x – 5) - 5(x - 2) - 18 for x = 2.​

Answer 1

Answer:

let x=2

=2×2(3×2-5)-5(2-2)-18

=4(6-5)-5(0)-18

=4-0-18

=-12

Answer 2

$\sf{2x(3x - 5) - 5(x - 2) - 18 = ? } \\ \\ \texttt{putting \: the \: value \: of \: x \: as \: 2}$

$\sf{ \hookrightarrow2 \times 2(3 \times 2 - 5) - 5(2 - 2) - 18}$

$\sf{ \hookrightarrow4(6 - 5) - 5(0) - 18}$

$\sf{ \hookrightarrow4(1) - 0 - 18}$

$\sf{ \hookrightarrow4 - 18}$

$\hookrightarrow \sf \blue{ - 14}$