2 years ago

What value of g makes the equation true? (x+7)(x-4)=x²+gx-28

Mathematics

1 answer:

34kurt2 years ago

4 0

Answer:

g = 3

Step-by-step explanation:

(x+7)(x-4) = x²+ gx -28

Multiply the two parenthesis

(x+7)(x-4)= x² -4x +7x -28

Combine like terms

(x+7)(x-4)= x²+3x-28

Compare the equations

x²+ gx -28 = x² +3x -28

g = 3

You might be interested in

The original price of the shirt is $50 but you paid $30 for it on sale what was the percentage change in price

marissa [1.9K]

Answer:

20%

Step-by-step explanation:

4 0

2 years ago

What is 39/40 simplified

atroni [7]

It cannot be simplified,
but in decimal it is
<em>0.975</em>

4 0

3 years ago

The part of the circle from point A to point B in the diagram represents 1/4 of the way around the circle.

sasho [114]

Answer:

Step-by-step explanation:

Since the sum of a circle is 360, just divide 360 and 1/4.

4 0

1 year ago

Elisa is making candles. She needs 5 ounces of wax for each candle. She has 25 ounces of wax. How many candles can she make?

Karolina [17]

25 divided by 5 = 5

The answer is 5 candles.

5 0

2 years ago

Read 2 more answers

Need help with this problem

alexandr1967 [171]

Answer:

x = 10

Step-by-step explanation:

Since the triangles are similar the ratios of corresponding sides are equal

$\frac{20}{20+8}$ = $\frac{3x}{4x+2}$ , that is

$\frac{20}{28}$ = $\frac{3x}{4x+2}$ ( cross- multiply )

20(4x + 2) = 84x

80x + 40 = 84x ( subtract 80x from both sides )

40 = 4x ( divide both sides by 4 )

x = 10

4 0

2 years ago

Read 2 more answers