3 years ago

14. x 2 + 10x − 25 = 0

Mathematics

2 answers:

Natali [406]3 years ago

7 0

think about two numbers that will get 25:

think about two numbers that will get 10

use the 5 times tables

5*5= 25

Use 5+5= 10

x^2+10x-25= 0

(x+5)(x+5)= 0

x+5= 0 , x+5= 0

x+5-5= 0-5

x= -5

x+5-5= 0-5

x= -5

Answer :

only x= 5

Rasek [7]3 years ago

6 0

28+10x-25=0
3+10x=0
10x=-3
x=-0.3

You might be interested in

The length of a rectaangle 48 centimeters. The relationship between the length, the width, and the perimeter of the rectangle ca

Monica [59]

Answer:

Step-by-step explanation:

We are told that the perimeter is 48 = 2L + 2W. This reduces to

24 = L + W. Next, substitute, one by one, the 3 widths 10 cm, 3.6 cm and w cm:

a) If W = 10 cm, 24 = L + W becomes 24 = L + 10, or L = 14 cm

b) If W = 3.6 cm, 24 = L + W becomes 24 = L + 3.6, or L = 20.6 cm

c) If W = w, 24 L + W becomes 24 = L + w, so that L = (24 - w) cm

4 0

3 years ago

Need help kinda stuck on this one!

irinina [24]

It goes zero positive negative. that is from left to right

6 0

2 years ago

Solve the binomial (5x+1)^2

Lorico [155]

Answer:

x=-1/5

double zero

Step-by-step explanation:

(5x+1)(5x+1)

x=-1/5

double zero

5 0

2 years ago

Need help finding this

polet [3.4K]

5(6x+5)-2(4x-1) = 30x+25-8x+2 = 22x+27

4 0

3 years ago

In order to solve the equation below, you need to change it around so that n is by itself. Write this new equation. Do not inclu

ale4655 [162]

N/6=30
Multiply both sides by 6
n=180

6 0

3 years ago