Please need help with math homework ?

Question

Please I need help with this problem if you could show me the work on how to get the answer

x= 3, y=3

(7x + 3y)^2

Answer 1

You plug in the x and y into the equation. So

[7(3)+3(3)]=

  21   + 9  = 30              For the ^2 part, just multiply 30 by 30......

30x30= 900

Answer 2

easy stuff. i'm pretty dumb at math, but all u gotta do is plug those numbers in. then ur always suppose to add or subtract the numbers in the parenthesis first.

Answer 3

(7x + 3y)²

x= 3, y=3

Substitute 3 for x and 3 for y

(7(3) + (3)(3))²

(21 + 9)²

(30)²

(30)(30) = 900

Another way to look at it is that when x=y

(7x + 3y)² = (7x + 3x)² = (10x)² = 100x²

If x=3, 100x² = 100(3)² = 100(9) = 900

Answer 4

1. substitute numbers for variables

(7[3] + 3[3])^2

multiply within parentheses

7*3 =21 and 3*3=9

(21+9)^2

Add with parentheses

30^2

Do the exponent

30*30= 900  

Answer 5

I know what u r asking...

It is different than the other answers... U dont wanna plug in 3,3 and get a solution...

But the way u have given is a little bit odd... Just try to give the question specificaly... coz this question does not have enough details !!!!

Answer 6

I assume you just need to plug those values into the second expression and solve.

(7(3) + 3(3))²

= (21 + 9)²

= 30²

= 30 * 30

= 900