4 years ago

X^2+1x-2=0 What could the answer be ?please help me .

Mathematics

2 answers:

Lisa [10]4 years ago

7 0

Answer:

once you factor it you get: (x+2)(x-1)

then when you solve for x the answer would be -2 and 1

Step-by-step explanation:

ASHA 777 [7]4 years ago

7 0

Answer: 1 , -2

Step-by-step explanation:

x=(-1±√1+4*2)/2

x=(-1±3)/2

x1=(-1+3)/2=2/2=1

x2=(-1-3)/2=-4/2=-2

You might be interested in

If you have 350 square feet of pumpkin seeds and the area of the garden is 18 feet by 22 feet do you have enough seeds

mixer [17]

No because the garden is 18*22 =396 square feet

5 0

4 years ago

Find the slope of the line whose equation is px - qy = r. q/p p/q -r/q

Zina [86]

Answer:

The slope is equal to

$m=\frac{p}{q}$

Step-by-step explanation:

we have

$px-qy=r$

Isolate the variable y

Subtract $px$ both sides

$px-qy-px=r-px$

$-qy=r-px$

Divide by $q$ both sides

$-y=(r-px)/q$

Multiply by $-1$ both sides

$y=(px-r)/q$

$y=\frac{p}{q}x-\frac{r}{q}$ ------> linear equation into slope-intercept form

the slope is equal to

$m=\frac{p}{q}$

The y-intercept is equal to

$b=-\frac{r}{q}$

4 0

4 years ago

Read 2 more answers

A single card is drawn from a standard 52-card deck. Let Upper B be the event that the card drawn is a black, and let F be the

Paul [167]

Answer:

Probability of card black 0,5 or 50%

Probability of face card 0,23 or 23 %

Step-by-step explanation:

A normal deck of card has 52 cards, half ( 26) black and half red (26)

Probability of card drawn is black is 0,5 or 50%

The deck has 4 suits and each suit 3 face cards, therefore we find 12 possibles events out of 52

Probability of drawn card is face card 12/52 = 0,23 or 23 %

6 0

4 years ago

A machine paints 340 toy boats in

Anestetic [448]

340 / 0.75 = 453.3333...

Approx 453 units per hour

3 0

4 years ago

Zarina said the sum of my age and my fathers age is 50. the product of our ages is 400. how oldis zarina

never [62]

Zariana is 10 and the Father is 40.

4 0

3 years ago

Read 2 more answers