Question

(2x²-7x)(4x²-7x)=(9x-2)(x²-5x)

check weather the equation is quadratic or not and show the steps​

Answer 1

Answer ;

No, given expression is not quadratic

Point To Be Remember ;

• A polynomial is said to be quadratic if the highest degree of the given polynomial is 2.
• The basic format of quadratic eqaution is

$ax {}^{2} + bx + c = 0$

Solution ;

As per given,

$(2 {x}^{2} - 7x)(4 {x}^{2} - 7x) = (9x - 2)( {x}^{2} - 5x)$

$8 {x}^{4} - 14 {x}^{3} - 28 {x}^{3} + 49x {}^{2} = 9 {x}^{3} - 45 {x}^{2} + 2x {}^{2} - 10x$

$8 {x}^{4} - 51x {}^{3} + 92 {x}^{2} + 10x = 0$

As the highest degree is 4 so the given expression is not quadratic.

Extra Key Points ;

• A purely quadratic eqaution is refer to condition when b = 0 i.e.

$a {x}^{2} + c = 0$

• Quadratic equation always have 2 square roots, roots can be real as well as imaginary

Ps;

Hope you get your answer.

Thanks for asking your query

#Be_Brainly

Answer 2

Step-by-step explanation:

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