Question

find x
400(1 – x )^2 = 240

Answer 1

Answer:

Factoring  x2-40x+240  

The first term is,  x2  its coefficient is  1 .

The middle term is,  -40x  its coefficient is  -40 .

The last term, "the constant", is  +240  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 240 = 240  

Step-2 : Find two factors of  240  whose sum equals the coefficient of the middle term, which is   -40 .

     -240    +    -1    =    -241  

     -120    +    -2    =    -122  

     -80    +    -3    =    -83  

     -60    +    -4    =    -64  

     -48    +    -5    =    -53  

     -40    +    -6    =    -46  

For tidiness, printing of 34 lines which failed to find two such factors, was suppressed

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Answer 2

Answer:

There are no factors of this as the discriminant of the equation is negative. Hence x has no real roots

Step-by-step explanation:

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