What is the value of each expression (-2)^4; -2^4

The answer is +16

Step-by-step explanation:

Based on the question given (-2)^4

It means -2 appears in four places

That is (-2×-2)×(-2×-2)

Remember that- ×- =+

Therefore opening the first bracket

-2×-2=+4

Opening the second bracket

-2×-2=+4

Lastly bringing the two values together

+4×+4=+16

Therefore the answer is +16

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

75%

step-by-step explanation: