Question

a2 -38a+361 (factories)​

Answer 1

Step-by-step explanation:

a^2-38a+361=0 a^2-19a-19a+361=0 a(a-19)-19(a-19)=0 (a-19)(a-19)=0 a-19=0 or a-19=0 a=19 or a=19

Answer 2

Answer:

${a}^{2} - 38a + 361 \\ = {a}^{2} - 19a - 19a + 361 \\ = a(a - 19) - 19(a - 19) \\ = (a - 19)( a- 19)$