All categories

3 years ago

Construct quadratic equation whose root are -3,+5.show the sloving

Mathematics

2 answers:

Mandarinka [93]3 years ago

6 0

Answer:

x² - 2x - 15 = 0

Step-by-step explanation:

Given that the roots are x = - 3 and x = 5

Then the factors are (x + 3) and (x - 5)

The equation is then the product of the factors

(x + 3)(x - 5) = 0 ← expand left side using FOIL

x² - 5x + 3x - 15 = 0, that is

x² - 2x - 15 = 0

harkovskaia [24]3 years ago

3 0

Answer:

hope this will help u .

plz mark me brainliest

You might be interested in

X/5 + 1 = 10<br><br> It’s number 11

shusha [124]

Answer:

X = 45

Step-by-step explanation:

7 0

3 years ago

If f(x-3)=x^2-4x+5, what's f(1-x)

olganol [36]

Answer:

$\large\boxed{f(1-x)=x^2-4x+5}$

Step-by-step explanation:

$f(x-3)=x^2-4x+5\\\\f((x-3)+3)\to\text{put x + 3 to the equation of the function:}\\\\f(x-3+3)=(x+3)^2-4(x+3)+5\\\text{use the distributive property and}\ (a+b)^2=a^2+2ab+b^2\\f(x)=x^2+2(x)(3)+3^2+(-4)(x)+(-4)(3)+5\\f(x)=x^2+6x+9-4x-12+5\qquad\text{combine like terms}\\f(x)=x^2+(6x-4x)+(9-12+5)\\f(x)=x^2+2x+2\\\\f(1-x)\to\text{put 1 - x to the equation of the funtion f(x):}\\\\f(1-x)=(1-x)^2+2(1-x)+2\\\text{use the distributive property and}\ (a-b)^2=a^2-2ab+b^2$

$f(1-x)=1^2-2(1)(x)+x^2+(2)(1)+(2)(-x)+2\\f(1-x)=1-2x+x^2+2-2x+2\qquad\text{combine like terms}\\f(1-x)=x^2+(-2x-2x)+(1+2+2)\\f(1-x)=x^2-4x+5$

4 0

3 years ago

Mariah just read the following passage in a short story:

Nana76 [90]

Answer:

D. enlargement

Step-by-step explanation:

enlargement means to increase something

3 0

3 years ago

Read 2 more answers

The height, H,of a cylinder is 5 units less than 3 times the radius, R, which expression expresses the height of the cylinder in

Zina [86]

The answer is: [B]: " 3r − 5 " .
_______________________________________________________

H = 3r <span>− </span>5
_______________________________________________________

3 0

3 years ago

Solve for x. Write the smaller solution first, and the larger solution second.

Maurinko [17]

Answer:

Step-by-step explanation: I actually have no Idea on what your homework is even about.

4 0

3 years ago

Read 2 more answers

Construct quadratic equation whose root are -3,+5.show the sloving​

Construct quadratic equation whose root are -3,+5.show the sloving