All categories

2 years ago

F(x)=2x^2-5 g(x)=5x+7

Mathematics

1 answer:

maks197457 [2]2 years ago

5 0

Answer:

I love algebra anyways

The ans is in the picture with the steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

You might be interested in

What is the solution set of the equation using the quadratic formula?

oee [108]

(1)

we are given

$x^2+6x+10=0$

we can use quadratic formula

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

now, we can compare and find a , b and c

we get

$a=1,b=6,c=10$

now, we can plug these values into quadratic formula

$x=\frac{-6\pm \sqrt{6^2-4(1)(10)}}{2(1)}$

$x=\frac{-6+\sqrt{6^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}$

we can simplify it

$x=-3+i$

$x=\frac{-6-\sqrt{6^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}$

$x=-3-i$

so, we will get solution

{−3+i, −3−i}.........Answer

(2)

we are given equation as

$x^2-8x+14=0$

Since, Jamal solve this equation by completing square

so, firstly we will move constant term on right side

so, subtract both sides by 14

$x^2-8x+14-14=0-14$

$x^2-8x=-14$

we can write

$-8x=-2\times 4\times x$

so, we will add both sides by 4^2

$x^2-8x+4^2=-14+4^2$

we get

$x^2-8x+16=-14+16$ ..............Answer

4 0

3 years ago

In a diamond problem solver what is 3.25 and 4 I need help ASAP

snow_lady [41]

Answer:12 I believe

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find the 30th term of an arithmetic sequence whose first term is 2 and common difference is 5.

Veronika [31]

2 + 29 times 5 = 147

3 0

3 years ago

Read 2 more answers

PLZ HELP ME!!!!!!!! 98 POINTS!!

Feliz [49]

Im not sure but i think its d

7 0

3 years ago

Peter elf had 149 presents

vlabodo [156]

So what is your question?

8 0

3 years ago