Question

me pueden ayudar con estos ejercicios

1. (x + 3)²:
2. (m + 12)²:
3. (2x+5)²:
4. (7x+9)²:
5. (x-11)²:
6. (8-y)²:
7. (5x -7)²:
8. (4x -13y)²:
9. ( x + 0,3)²:
10. (0,2x - 0,9y)²:
11. (5mn² + 3)²:
12. (a²b³+ c5)²:
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Answer 1

Respuesta:

1.(x + 3)²:

x²+3²

=x²+9

2.(m+12)²

m²+12²

=m²+144

3. (2x+5)²:

(2x)²+5²

= 4x²+25

4. (7x+9)²:

(7x)²+9²

= 49x²+81

5. (x-11)²:

x²-11²

=x²-121

6. (8-y)²:

8²-y²

=-y²+64

7. (5x -7)²:

(5x)²-7²

=25x²-49

8. (4x -13y)²:

(4x)²+(-13y)²

=16x²-169y²

9. ( x + 0,3)²:

x²+0.3²

=x²+0.9

10. (0,2x - 0,9y)²:

(0.2x)²+(-0.9y)²

=0.4ײ-0.81y²

11. (5mn² + 3)²:

(5mn²)²+3²

=25m²n⁴+9

12. (a²b³+ c5)²:

(a²b³)²+(c5)²

=a⁴b⁵+c²25