I need the answers to these math problems?

Question

I can't figure these ones out for some reason.
2 * 3 + 4 * 3^2 =

5 – 3 * (-2)

(10 + 5) / 5 + (-3)^2 =

10 + 5 / 5 + 3^2 =

I can't figure out how to show my work for these cause I am getting them wrong

Answer 1

The trick with these is the order of operations. If there are no parentheses, then the order is:

1. sign (positive or negative)
2. exponents & roots
3. multiply/divide
4. add/subtract

So for the first one:

2*3 + 4 * 3^2 =
2*3 + 4*9 =
6 + 36 =
42

Second:

5 - 3 * (-2) =
5 - (-6) =
11

Third:

(10 + 5 ) / 5 + (-3)^2 =
(10 + 5) / 5 + (9) =
15/5 - 9 =
3 + 9 =
12

Fourth:

10 + 5/5 + 3^2 =
10 + 5/5 + 9 =
10 + 1 + 9 =
20

Answer 2

Its also important to refer to your book and notes :-)

*Solve each problem with PEMDAS > ( ), exponents, multiplication, division, addition & subtraction...

1. 2 * 3 + 4 * 3^2

2 * 3 + 4 * (3)(3)
2 * 3 + 4 * 9
6 + 36
= 42

2. 5 - 3 * (-2)

5 - (-6)
5 + 6
= 11

3. (10 + 5) / 5 + (-3)^2

(10 + 5) / 5 + (-3)(-3)
(10 + 5) / 5 + 9
15 / 5 + 9
3 + 9
= 12

4. 10 + 5 / 5 + 3^2

10 + 5 / 5 + (3)(3)
10 + 5 / 5 + 9
10 + 1 + 9
11 + 9
= 20

Answer 3

Answer #1. ~42~
Answer #2. ~11~
Answer #3. ~12~
Answer #4. ~20~

Take this, from someone, who has
a 102, in Mathematics Class!!!!!



Use PEMDAS!!!!!

Please Excuse My Dear Aunt Sally!!!!!

P=Parenthesees (You do this first!!!!!)
E=Exponents
M=Multiplication
D=Division
A=Addition
S=Subtraction (You do this last!!!!!)

Answer 4

42

11 ( not -1 as it is 5-(-6) which is 5+6)

12

20