3 years ago

Solve by factoring or finding square roots.

Mathematics

1 answer:

Troyanec [42]3 years ago

3 0

Option D is correct.

Step-by-step explanation:

We need to solve $5x^2=15x$ by factoring or finding square roots.

We will be solving by factoring.

$5x^2=15x\\5x^2-15x=0\\5x(x-3)=0\\5x=0\,\,and\,\,x-3=0\\x=0\,\,and\,\,x=3\\$

So, solving $5x^2=15x$ by factoring we get x=0 and x=3

So, Option D is correct.

Keywords: Factorization

Learn more about Factorization at:

#learnwithBrainly

You might be interested in

Need help with this question. Thank you

V125BC [204]

I think the answer is b

3 0

3 years ago

Read 2 more answers

What is the value of x?

frez [133]

$\left\{\begin{array}{ccc}x+2y=4&\text{multiply both sides by 5}\\4x-5y=42&\text{multiply both sides by 2}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}5x+10y=20\\8x-10y=84\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad13x=104\qquad\text{divide both sides by 13}\\\\\boxed{x=8}\\\\Answer:\ \boxed{\boxed{x=8}}$

5 0

2 years ago

Let f(x) = x2 and g(x) = x - 3. Evaluate (gºf)(-2). A. -20 B. 20 C. 7 D. 1

7nadin3 [17]

Answer:

D. 1

Step-by-step explanation:

Step 1: Find g of f(x)

g(f(x)) = (x²) - 3

Step 2: Plug in -2 as x

g(f(x))(-2) = (-2)² - 3

g(f(x))(-2) = 4 - 3

g(f(x))(-2) = 1

7 0

3 years ago

Sin(x+20) - cos (2X+10)

Vladimir [108]

Answer:

X=20

Step-by-step explanation:

Sin(x+20)=cos(2x+10)

Sin(x+20)=sin(90-(2x+10)

X+20=90-2x-10

3x=60

X=20

8 0

3 years ago

I will give brainlest help plssss

Charra [1.4K]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers