Question

Simplify:
9x2 - 4x – 3 = [?]
-
=
x=-2

Answer 1

`\huge{\boxed{{ x = -2}}}`

`9x² - 4x - 3`

`↠ 9 (-2)² -4 (-2) - 3`

`↠ 9×4+8-3`

`↠ 36 + 8 -3`

`↠ 44-3`

`↠ 41`

`\large{{\bold{ \underline{ \underline{ \overline{ \overline{ \pink{9{x}^(2) - 4x – 3 = 41}}}}}}}}`

Answer 2

Explanation:

if x = -2

= 9x² - 4x - 3

= 9 ( -2)² - 4 ( -2 ) - 3 [ x = -2 ]

= 9 × 4 + 8 - 3

= 36 + 8 - 3

= 44 - 3

= 41