Question

factorise x²-28x+196​

Answer 1

(x+14) (x+14) or (x+14)^2

• x^2 + 28x +196
• x^2 + (14x +14x) + 196
• We will factorise 196 in that terms by which on adding the numbers we should get 28 and on multiplying we should get 196. So the factor is (14 +14)
• (x^2 + 14x) + (14x +196)
• x (x +14) + 14x (x +14)
• (x + 14) (x +14)
• (x + 14)^2

Answer 2

Answer:

Factorise :-

x ^2 - 28x + 196

x ^2 - 14x - 14x + 196

x ( x - 14 ) - 14 ( x - 14 )

( x - 14 )( x - 14 )

( x - 14 ) ^2

Answer :- ( x - 14 )( x - 14 ) or ( x - 14 ) ^2.

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