3 years ago

2x^2-5x-10=4x-5 solve algebraically

Mathematics

2 answers:

kkurt [141]3 years ago

4 0

Answer:

by factoring the answer is - x=1/2, 5

Step-by-step explanation:

hope it helps:))

DochEvi [55]3 years ago

3 0

Answer:

x=-½

x=5

Step-by-step explanation:

2x²-5x-10=4x-5

2x²-5x-10-4x+5=0

2x²-9x-5=0

2x²+x-10x-5=0

x(2x+1)-5(2x+1)=0

(2x+1)(x-5)=0

2x+1=0

2x=-1

x=-1/2

x-5=0

x=5

You might be interested in

Michael is using a number line to evaluate the expression –8 – 3. A number line going from negative 12 to positive 12. A point i

Nata [24]

Answer:

move to the left 3 more spaces

Step-by-step explanation:

you are at -8 already. Therefore, you (-3) more spaces, so you go to the left three more spaces. Use the saying keep change change to help with this.

Keep the first number sign, change the next sign, and the next sign.

6 0

3 years ago

The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of

Ivenika [448]

Maximum area of the rectangle is $9cm^{2}$

Explanation:

Considering the dimensions to be in cm

$f(x) = -(x-3)^{2} +9\\f(x) = -(x^{2} +9 - 6x)+9\\f(x) = -x^{2} +6x\\f'(x) = -2x+6\\-2x+6 = 0\\2x=6\\x=3cm\\\\$

Putting the value of x = 3

$Perimeter = 2(x+b)\\12 = 2(3+b)\\6 = 3+b\\b= 3cm$

$Area of rectangle = x X b\\ = 3 X 3\\ = 9cm^{2}$

Therefore, maximum area of the rectangle is $9cm^{2}$

7 0

3 years ago

To make hot chocolate, Raquel poured 3/8 cup of chocolate syrup into an empty mug then added 3/4 cup of hot milk. How much hot c

KATRIN_1 [288]

3/4=6/8

6/8 + 3/8 = 9/8

9/8=1 and 1/8

Answer: Raquel made 1 and 1/8 of hot chocolate

8 0

2 years ago

Read 2 more answers

What is the slope of the line x=3? plz hurry

zalisa [80]

1 over 3 since its rise over run and the x would be on the bottom and since you dont have a y it would be 1

6 0

3 years ago

Kari rode his bicycle 3/8 of the distance from Lakeview to Bay cove, which is 24.1 miles. How many more miles does he need to ri

motikmotik

3/8 = 0.375.

24.1 * 0.375 = 9.03.

24.1 - 9.03 = 15.07.

Kari has 15.07 more miles to go.

8 0

3 years ago

Read 2 more answers