Simplify the expression

(9-7) ^3 * 5^0 + (8+3) ^2 show your work.

Simplify the expression

3.2 * 10^5 + 1.25 * 10^4 + 2.9 * 10^5

Show your work.

(9-7) ^3 (5^0) + (8+3) ^2

= (2^3) (5^0) + (8+3) ^ 2

= 8 (5^0) + (8+3) ^ 2

= (8) (1) + (8+3) ^ 2

= 8 + (8+3) ^ 2

= 8 + 11^2

= 8+121

= 129

3.2 (10^5) + 1.25 (10 ^4) + 2.9 (10^5)

= (3.2) (100000) + 1.25 (104) + 2.9 (105)

= 320000 + 1.25 (10 ^4) + 2.9 (10^5)

= 320000 + (1.25) (10000) + 2.9 (10 ^5)

= 320000+12500 + 2.9 (10 ^5)

= 332500 + 2.9 (10 ^5)

= 332500 + (2.9) (100000)

= 332500+290000

=622500