1. (x + 7)(x + 7)

= x² + 7x + 7x + 49

= x² + 14x + 49

2. (2x + 5)(x - 4)

= 2x² - 8x + 5x - 20

= 2x² - 3x - 20

3. (x + 11)(x - 11)

= x² - 11x + 11x - 121

= x² - 121

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Answer:

use foil method on the following and show your complete solution

1. (x + 7)²

2. (2x + 5)(x - 4)

3. (x + 11)(x - 11)

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pls help (つ .•́ _ʖ •̀.)つ