Question

Review the following problem and answer the questions that follow.
-3x + y = 8
+ -3x + y = -4
2y = 4
y =2

-3x + 2 = -4
-3x = -6
x = 2
(solution 2,2)

Answer 1

Answer:

A) (x + 1)2 = 122

⇒ (x + 1)2 – 122 = 0

⇒ (x + 1 – 12)(x + 1 + 12) = 0

⇒ (x – 11)(x + 13) = 0

x = 11, –13

B) y2 + 2y – 143 = 0

⇒ y2 + 13y – 11y – 143 = 0

⇒ y(y + 13) – 11(y + 13) = 0

⇒ (y + 13)(y – 11) = 0

y = 11, – 13

So, no relation can be established.

Answer 2

Answer:

x=11

y=-13

hope it helps you