How do you simplify $30-[9+4(8-5])$ using order of operations?

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Answer 1 · 2016-07-30T23:40:00

can't

you've ended the square brackets before the curved ones.

Answer 2 · 2016-07-31T21:07:54

= $9$

There is obviously a small typing error in the question....

Let's assume it is supposed to read:

$color(blue)(30)color(magenta)(-[9+4(8-5)])" there are two terms"$

Work from the inside bracket .

= $color(blue)(30)color(magenta)(-[9+4(3)])$

= $color(blue)(30)color(magenta)(-[9+12]$

= $color(blue)(30)color(magenta)(-[21])$

= $9$

How do you simplify 30-[9+4(8-5])30-[9+4(8-5]) using order of operations?