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Temka [501]
2 years ago
7

4x^2 - y^2 - 2x- y Factorise each of the following expressions completely

Mathematics
1 answer:
Sergeu [11.5K]2 years ago
3 0

Answer:

(2x + y)(2x - y - 1)

Step-by-step explanation:

4x² - y² - 2x - y

4x² - y² is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

4x² - y²

= (2x)² - y²

= (2x - y)(2x + y)

expression is now

(2x - y)(2x + y) - (2x + y) ← factor out (2x + y) from each term

= (2x + y)(2x - y - 1)

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so did you get what I solved the answer is D ok

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A sequence is defined resursively by the formula f(n + 1) = f(n) + 3. The first term of the sequence is -4. What is the next ter
Vlad1618 [11]

The next term of the sequence is -1.

Given, a sequence is defined recursively by the formula

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We, have to find the next term of the sequence,

On using the formula of the sequence, we get

f(n + 1) = f(n) + 3

As, f(1) = -4

Put n = 1,

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f(2) = -4 + 3

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So, the next term of the sequence is -1.

Hence, the next term of the sequence is -1.

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2 years ago
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Allushta [10]

Answer:

60in^2

Step-by-step explanation:

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=> Height = Square root of 144

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Expression that has a value of 2.472.
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Answer:

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Step-by-step explanation:

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Find: x

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Hope it helps!

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