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CBSE Class 10 Answered

find the zero of the polynomial x²- 55x + 750
Asked by dhaneswarnimal80 | 11 Nov, 2023, 06:50: AM
answered-by-expert Expert Answer
begin mathsize 14px style x squared minus 55 space x space plus space 750 space equals space 0 end style  .................................(1)
 
750 = (-30) × (-25)   ;    -55 = -30=25
 
 
Eqn.(1) is written as
 
begin mathsize 14px style x squared minus 30 space x space minus space 25 space x space minus space 750 space equals space 0
x left parenthesis x minus 30 right parenthesis space minus 25 left parenthesis x minus 30 right parenthesis space equals space 0
left parenthesis x minus 30 right parenthesis left parenthesis x minus 25 right parenthesis space equals space 0 end style
 
Hence zero's of given polynomial are 25 and 30
Answered by Thiyagarajan K | 11 Nov, 2023, 08:50: AM

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