All categories

3 years ago

What is the product (2x-1)(x+4)

Mathematics

2 answers:

Ostrovityanka [42]3 years ago

8 0

2x(x+4)-1(x+4)
2x^2+8x-x-4
2x^2+7x-4

dimaraw [331]3 years ago

7 0

Answer: $2x^2+7x-4$ .

Step-by-step explanation:

To find : The product of $(2x-1)(x+4)$

Using distributive property : $a(b+c)=ab+ac$ , we have

$(2x-1)(x+4)\\\\= (2x-1)x+(2x-1)4$

Again , using distributive property : $(b+c)a=ba+ca$ , we have

$(2x-1)x+(2x-1)4=2x\cdot x+(-1)x+2x\cdot 4+(-1)4\\\\=2x^2-x+8x-4\\\\= 2x^2+7x-4$

Hence, The product of $(2x-1)(x+4)$ is $2x^2+7x-4$ .

You might be interested in

Ryobi Limited sold a set of saws to Ace Hardware. The list price was $3,800. Ryobi offered a chain discount of 8/3/1. What's the

laila [671]

Answer: Option 'B' is correct.

Our net price will be $3357.21.

Explanation:

Since we have given that

The list price of set of saws = $3800

There are 3 successive discounts :

8%,3%,1%

So, if we apply first for 8% discount our new price becomes,

$3800\times \frac{100-8}{100}=3800\times 0.92=\$3496$

Now, if we apply 3% on our deducted price , our new price becomes ,

$3496\times \frac{100-3}{100}=3496\times 0.97=\$3391.12$

Now, we'll apply for 1% on our new deducted price , our net price becomes,

$3391.12\times \frac{100-1}{100}=3391.12\times 0.99=\$3357.21$

Hence, our net price will be $3357.21.

Therefore, Option 'B' is correct.

6 0

3 years ago

A tomato plant grows 24 inches tall in 10 weeks. If the rate remains the same, how tall would the plant be after 7 weeks?

joja [24]

Answer:

168 inches which is also 14 feet

3 0

3 years ago

A ___ is the result of a division problem.

natita [175]

Answer: The dividend is divided by the divisor to get the result which is the quotient.

3 0

3 years ago

Four circles, each with a radius of 2 inches, are removed from a square. What is the remaining area of the square? (16 – 4π) in.

anyanavicka [17]

Since 4 circles are circumscribed by a square, then the side length of the square is 8

So the area of the square is 8^2 = 64

The area of 4 squares is 4 * pi*2^2 = 16pi

So the answer will be 64 - 16pi

6 0

3 years ago

Read 2 more answers

This event is independent, true or false?

egoroff_w [7]

Answer:

False

Step-by-step explanation:

Because the question says you pick a <u>different</u> shirt on Tuesday than on Monday, that means you have one less shirt you can select, so the event is dependent.

6 0

2 years ago