Respuesta :
Answer:
12
Step-by-step explanation:
Order of operations
3{25–[7^2–4(11–4)]}
= 3{25–[49–4(7)]}
= 3{25–[49–28]}
= 3{25–21}
= 3{4}
= 12
Answer:
12
Step-by-step explanation:
given the expression 3 (25 - (7² - 4 (11 - 4)))
we need to work from the innermost bracket out
3 (25 - (7² - 4 (7))) multiply 4 and 7
3 (25 - (7² - 28)) find 7²
3 (25 - (49 - 28)) solve 49 - 28
3 (25 - 21) solve 25 - 21
3 (4)
12