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4 years ago

Simplify the expression 8^2-[7(4+5)]

Mathematics

1 answer:

Sidana [21]4 years ago

4 0

Greetings!

To simply this expression, we have to follow our Order of Operations using the mnemonic, PEDMAS:

P→ Parenthesis (Complete everything inside the brackets)

E→ Exponents

D→ Division

M→ Multiplication

A→ Addition

S→ Subtraction

Let's try to the simply the expression now:

$=8^2-(7(4+5))$

Complete the the addition within the innermost parenthesis:

$=8^2-(7(9))$

Multiply the terms within the parenthesis:

$=8^2-(63)$

Find the exponent of 2 in 8:

$=64-(63)$

Subtract the remaining terms:

$=1$

The Simplified form of this Expression is:

$\boxed{=1}$

I hope this helped!

-Benjamin

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