Question

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Answer 1

Answer:

I). −x²+x+2=0

Common factor

-(x²-x-2)=0 Divide both sides of the equation by the same term

Use the quadratic formula

x= -b±√b²-4ac/2a

Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.

(x²-x-2)=0

a=1,b=-1,c=-2 --->. by applying this to the formula we get x= -(-1) ± √(-1)²-4.1(-2)/2.1

simplify:

x=1±3/2

Separate the equations :

To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus

we get, x=1+3/2. x=1-3/2

Solve:

Rearrange and isolate the variable to find each solution. x=2. x=-1

x=2,-1 =====>. Solution

ii). √3x²+10x-8√3 =0

√3x²+6x+4x-8√3 =0

√3x(x+2√3)-4(x+2√3) = 0

x=-2√3,4/√3 ====>solution

iii). x=-1/√5,√5/2 ====> solution

iv). x=5/3,-1 ====> solution

Answer 2

Answer:

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Isha_

From Mumbai_

Age - Bhul gai

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