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baherus [9]
3 years ago
12

Which is a correct expansion of (2x+3)(2x^2-5)?

Mathematics
1 answer:
stellarik [79]3 years ago
8 0

Answer:

4x^3 + 6x^2 - 10x - 15

Step-by-step explanation:

(2x + 3)(2x^2 - 5)    First multiply the second bracket by 2x then by +3:-

= 2x(2x^2 - 5) + 3(2x^2 - 5)

= 4x^3 - 10x + 6x^2 - 15

=  4x^3 + 6x^2 - 10x - 15  (answer)

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Step-by-step explanation:

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I need helpppppp asap
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Answer:

graph A

Step-by-step explanation:

When looking at a graph, there are two different axes. The vertical values--marked by the center up/down line--are "y-values"; and this is called the "y-axis"

The horizontal values--marked by the left/right line--are "x-values"; and this is called the "x-axis"

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Values to the right side of the origin are positive--greater than 0.

For the y-axis, positive numbers are on the top half [once again, the midpoint / 0 is where the two lines are both = to 0; the origin] and negative numbers are on the bottom half.

Ordered pairs (points) are written as (x,y)

(x-value, y-value)

We are looking for a graph that decreases (along the y-axis), hits a point below the origin, and goes flat/stays constant.

When a graph is decreasing (note: we read graphs from left to right), the line of the graph is slanted downwards (it looks like a line going down).

So, if we look at the graphs, we can see Graph A descending, crossing the y-axis {crossing the middle line /vertical line / y-axis} at a value of -7, and then staying constant (it is no longer increasing or decreasing because the y-values stay the same)

hope this helps!!

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2 years ago
Which inequality is represented by the graph y>-2/3x+1 y<-2/3x+1 y<-3/2x+1 y>-3/2x+1
soldi70 [24.7K]

Answer:

the 3rd one is the graph answer

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