Question

The value -1 is a solution for x2 - 6x+ 5 = 0. True or false

Answer 1

Answer:

false

Step-by-step explanation:

• If -1 us a solution then putting -1 in place of x will be 0

$\rm \dashrightarrow \: {x}^{2} - 6x + 5 = 0 \\ \rm \dashrightarrow \: {( - 1)}^{2} - 6( - 1) + 5 = 0 \\ \rm \dashrightarrow \: 1 + 6 + 5 = 0 \\ \rm \dashrightarrow \: 7 + 5 = 0 \\ \rm \dashrightarrow \: 12 \cancel{ = }0$