How do you simplify #8[-5 + 8(-7 + 2)]#?

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Answer 1 · 2016-07-13T11:23:03

#-360#

Count the number of terms first. There is only one term.

Count the number of terms inside the parentheses,
There are 2 terms.
Simplify each term separately. Calculate inside the parentheses first.

=#8[color(blue)(-5) +8 color(magenta)((-7 + 2))]#

=#8[color(blue)(-5) + color(magenta)(8(-5))] " now multiply"#

=#8[color(blue)(-5) color(magenta)(-40)] " calculate inside the parentheses"#

=# 8[color(orange)(-45)]" now do the final multiplication"#

= #8 xx -45 = -360#