Question

1. (2x +y)² =
2. (3m+2n)² =
3. (5x – 3y )²=
4. (m – 3n )²=
5. (m + n)(m – n )=
6. (3a + 2b)(3a – 2b)=
7. (3x – 4y)(3x + 4y)=
8. (x – 2 )(x + 2)=
Ayuda porfavor lo necesito para mi examen gracias

Answer 1

Respuesta:

1 (2x +y)² = 4x² + 4xy + y²

2 (3m+2n)² = 9m² + 12mn + 4n²

3 (5x – 3y )²= 25x² + 30xy + 9y²

4  (m – 3n )²= m² + 6mn + 9n²

5 (m + n)(m – n )= m² - n²

6 (3a + 2b)(3a – 2b)= (3a)² - 4b²

7 (3x – 4y)(3x + 4y)= (3x)² - 16y²

8 (x – 2 )(x + 2)= x² - 4

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