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3 years ago

Really need help. Answer following questions

Mathematics

1 answer:

Shalnov [3]3 years ago

8 0

1. Yes x^2 + 4x + 4 - 4 + 3 = 0 is still equivalent to x^2 + 4x + 3 = 0 since whilst we have added a 4 to the function, we have also subtracted a 4, and since +4 - 4 = 0, we haven't actually changed the value of the equation

2. -1 is the sum of -4 and 3

3. (x + 2)^2 - 1 = (x + 2 + sq.root of 1)(x + 2 - sq.root of 1)
= (x + 2 + 1)(x + 2 - 1)
= (x + 3)(x + 1)
(x + 3)(x + 1) = 0
x = -3 or x = -1

Hope that makes sense :)

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(1)The value of x is -9 .

Option (B) is correct .

(2)The value of x is 13 .

Option (A) is correct .

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Option (D) is correct .

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Option (A) is correct .

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Option (C) is correct .

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First Part

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Option (B) is correct .

Second Part

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Option (D) is correct .

Fourth Part

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Fifth Part

As given

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Option (C) is correct .

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