Question

(a+2b)^2-a^2 factories​

Answer 1

Answer:

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