Question

(a + b)² - 4ab
please solve this​

Answer 1

(a + b)^2 - 4ab

a^2 + b^2 + 2ab - 4ab

a^2 - 2ab + b^2

(a - b)^2

Answer 2

Step-by-step explanation:

${(a + b)}^{2} - 4ab \\ = {a}^{2} + {b}^{2} + 2ab - 4ab \\ = {a}^{2} + {b}^{2} - 2ab \\ = {(a - b)}^{2}$

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