Plss help! Question: Find a,b and c

Question

asked Jul 6, 2023 133k views

1 Answer

Forge Web Design · Answer 1 · 2023-07-13T02:45:17+0000

Answer:

See below, please

Explanation:

The right：

${(y + c)}^(2) - b * (x + a) \\ = ( {y}^(2) + 2yc + {c}^(2) ) - bx - ba =$

$= {y}^(2) - bx + 2cy + {c}^(2) - ab$

The left:

$= {y}^(2) - 7x - 18y + 109$

So, after comparing the right side and the left side of this equation, we know

1)

b = 7

2)

$2c = - 18 \\ so \\ c = - 9$

3)

${c}^(2) - ab = 109$

So,

$a = \frac{ {c}^(2) - 109}{b} = \frac{ { (- 9)}^(2) - 109}{7} = ( - 28)/(7) = - 4$