Question

Factorize the following polynomial by spilitting the meddle term :- (1) b^2-12b+90 ​

Answer 1

Answer:

Factoring  b2-12b+90  

The first term is,  b2  its coefficient is  1 .

The middle term is,  -12b  its coefficient is  -12 .

The last term, "the constant", is  +90  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 90 = 90  

Step-2 : Find two factors of  90  whose sum equals the coefficient of the middle term, which is   -12 .

     -90    +    -1    =    -91  

     -45    +    -2    =    -47  

     -30    +    -3    =    -33  

     -18    +    -5    =    -23  

     -15    +    -6    =    -21  

     -10    +    -9    =    -19  

For tidiness, printing of 18 lines which failed to find two such factors, was suppressed

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result : SORRY THIS CAN'T BE FACTORISE, PLZ CHECK IF ANY SIGN MISTAKE IS THERE.