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hjlf
3 years ago
15

How do I factorise an expression

Mathematics
1 answer:
ololo11 [35]3 years ago
3 0
It factorises to -
4(x+6)

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A farmer wants to plant an apple orchard. His design consists of 10 rows of trees, where each row is 29.79 feet long. When he ge
Elis [28]
First divide 29.79 feet by 6
\frac{29.79}{6} = 4.97
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Now there are ten rows so...
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Please solve for the triangle thank you
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A person's heart rate is 65 beats per minute at rest. It increases by 12 beats per minute for each of
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5 0
3 years ago
Which of the following represents the range if the function g(x) below? G(x) = 5(x - 2) ^ 2 - 7
Savatey [412]

Answer:

[-7,∞)

Step-by-step explanation:

This function is a parabola that has a positive coefficient, so the parabola will open upwards (or make a smile if you want to call it that). The vertex is located at (2,-7) because of the vertex equation, so you know that the y values are greater than or equal to -7.

3 0
3 years ago
Producer of <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20-4x-21" id="TexFormula1" title="x^{2} -4x-21" alt="x^{2} -4x-21" ali
tamaranim1 [39]

Answer:

(x - 7)(x + 3)

Explanation:

\rightarrow \sf x^2 - 4x - 21

breakdown

\rightarrow \sf x^2 - 7x +3x- 21

factor out common terms

\rightarrow \sf x(x - 7) +3(x- 7)

collect into groups

\rightarrow \sf (x+3)(x- 7)

5 0
1 year ago
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