Question

The value of x 2- 4 when x = 7 is

Answer 1

Answer:

7*2-4

answer will be 14-4

10

Answer 2

${x}^{2} - 4$

$After \: adding \: value$

${7}^{2} - 4$

$49 - 4$

$45$

$OR$

$x\times2-4$

$After\:adding\:the\:value$

$7\times2-4$

$14-4$

$10$

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