Question

4a²+b²+4ab-8a-4b+4


factories​

Answer 1

Answer:

${(2a + b - 2)}^{2}$

Step-by-step explanation:

$4 {a}^{2} + {b}^{2} + 4ab - 8a - 4b + 4 \\ = {( 2a)}^{2} + {b}^{2} + {( - 2)}^{2} + 2(2ab - 4a - 2b) \\ = {(2a)}^{2} + {b}^{2} + {( - 2)}^{2} + 2(2a \times b + 2a \times ( - 2) + b \times ( - 2)) \\ = {(2a + b - 2)}^{2}$