Question

ху
lim
(7,3)+(0,0) x2 + y2
; (x, y) + (0,0)
>​

Answer 1

Answer:

1.1 Factoring x2-20x-15

The first term is, x2 its coefficient is 1 .

The middle term is, -20x its coefficient is -20 .

The last term, "the constant", is -15

Step-1 : Multiply the coefficient of the first term by the constant 1 • -15 = -15

Step-2 : Find two factors of -15 whose sum equals the coefficient of the middle term, which is -20 .

-15 + 1 = -14

-5 + 3 = -2

-3 + 5 = 2

-1 + 15 = 14

Observation : No two such factors can be found !!

Step-by-step explanation:

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Answer 2

Answer:

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