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3 years ago

Which are solutions of the equation 4x2 – 7x = 3x + 24? Check all that apply.

Mathematics

1 answer:

Andreyy893 years ago

3 0

Answer:

x = -3/2, x = 4

Step-by-step explanation:

4x² - 7x = 3x + 24, first put everything on one side

4x² - 10x - 24 = 0, factor 2 out

2(2x² - 5x - 12) = 0 then factor. You need two numbers that multiply to be -24 and add to be -5, so -8 and 3 are the factors.

(2x² - 8x) + (3x - 12) group them either way and then factor out GCF

2x(x - 4) + 3(x - 4) = 0

(2x + 3)(x - 4) = 0, set each factor = 0 and solve

2x + 3 = 0, 2x = -3, x = -3/2

x - 4 = 0, x = 4

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The X multiple answers are 60 or 55 or 9 or 27 and

Molodets [167]

Step-by-step explanation:

It is an isosceles triangle , it has two equal angles both 55°.

All Isosceles triangles have two equal angles and two equal sides.

So in this case x +18 is equal to 3x, and to find x you will equal them to each other to create a linear equation and solve.

x + 18 = 3x

x - 3x = -18

-2x = -18

× = -18 / -2

× = 9 (ans)

Hope I was able to help. Good Luck :)))

5 0

3 years ago

Find the value for “x”; 2 – 7x = -19

Law Incorporation [45]

Step-by-step explanation:

2+19=7x

21=7x

21÷7=7x÷7

3=x

..

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3 years ago

What are the five factors of 16?

liberstina [14]

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3 years ago

Read 2 more answers

If f(x) = -5, then f(-3)=

vitfil [10]

Answer:

f(-3)= -5

g(4)= 7

Step-by-step explanation:

here f(x)= -5, clearly it's not depending on 'x' ,so it will have same value,for all x

i.e, f(-3) is also -5

and, g(x)=2x-1

to get g(4) put x=4 in 2x-1

i.e, (2×4)-1 =7

✌️:)

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lana66690 [7]

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