Question

Please tell me how to do quatric equations.​

Answer 1

Solving Quadratic Equations

Put all terms on one side of the equal sign, leaving zero on the other side.

Factor.

Set each factor equal to zero.

Solve each of these equations.

Check by inserting your answer in the original equation.

Answer 2

Answer:

let's learn from an example :

2x² + 7x + 5 = 0

we will first multilpy two numbers in our mind .

so here the product is 10x².

Now we will keep such two numbers that when multiplied it comes 10x² but when added or subtracted it comes 7 .

So here in2x² + 7x + 5 = 0

= 2x²+2x+5x+5=0(when we multiply 2x and 5 it comes 10x² and when added it comes 7x)

now we will take common:

2x(x+1) + 5(x+1)=0

when taking common we have to keep one thing in mind that the numbers in bracket should be same.

next step :

we will take again common

(x+1) (2x+5) = 0

(x+1) is common in both so we took it as one then what was left was (2x+5)

now we will put both the factors equal to zero

factors are :

(x+1)

(2x+5)

(x+1)=0

x = -1

(2x+5)=0

2x = -5

x = -5/2

it's ishu here!!!

Hope it may help you!!!