Question

d evaluate them as directed
(ii) 3x(2x - 7) - 3(x-4) - 63 for x = -2​

Answer 1

Answer:

$3x(2x - 7) - 3(x - 4) - 63....forx = - 2 \\ 3 \times - 2(2 \times - 2 - 7) - 3( - 2 - 4) - 63 \\ 3 \times 36 + 18 =126ans$

Answer 2

Answer:

3x(2x-7)-3(x-4)-63 = 9

Step-by-step explanation:

3 × -2 ( 2 × -2 -7 ) - 3 ( -2 - 4 ) - 63

- 6 ( - 4 - 7 ) - 3 ( -2 ) - 63

- 6 ( - 11 ) - -6 - 63

66 + -57

66 - 57

9