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

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:

Complete the the addition within the innermost parenthesis:

Multiply the terms within the parenthesis:

Find the exponent of 2 in 8:

Subtract the remaining terms:

The Simplified form of this Expression is:

I hope this helped!

-Benjamin

trough to 50 re s thr bke   nedsh le. therfore te dkgj jdjvhvfhv fe sjfv adxcc 60.

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47