Question

Solve the equation and find the roots correct upto three decimal places(usage of calculators not allowed) [4] 3x 2 + 2√5x − 5 = 0

Answer 1

Answer:

$\sf{\underline{\underline{\large{\bold{Answer:-}}}}}$

3x²+2root5-5=0

x=-2root5±root 20-4(3)(-5)/6

x=-2root5±root20+72/6

x=-2root5±root 92/6

solve this u get urs answer perfectly

Answer 2

Answer:

Step-by-step explanation:

Roots of x²-3x+2=0

_______________

→$x^2-3x+2=0$

→x²-x-2x+2=0

→x(x-1)-2(x-1)=0

→(x-2)(x-1)=0

→x-2=0

→x=2

AND

→x-1=0

→x=1

SO THE ROOTS OF THE POLYNOMIAL ARE 1 AND 2

===============================

Roots of 2x²-5x+2=0

________________

→2x²-5x+2=0

→2x²-4x-x+2=0

→2x(x-2)-1(x-2)=0

→(2x-1)(x-2)=0

→2x-1=0

→2x=1

→x=1/2

AND

→x-2=0

→x=2

SO THE ROOTS OF THE POLYNOMIAL ARE 1/2 AND 2.

===============================

THE COMMON ROOT OF THE TWO QUADRATIC EQUATIONS IS 2

HOPE IT HELPS