Question

How to find value of 143² - 142² by fractorisation methods

Answer 1

Answer:

(143+142) (143-142)

Step-by-step explanation:

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Answer 2

$\sf \purple{ \fbox{ \underline{ Question :-}}}$

How to find value of 143² - 142²

$\sf \purple{ \fbox{ \underline{ Property :-}}}$

$x^{2} - y^{2} \; = \; (x-y) (x + y )$

$\sf \purple{ \fbox{ \underline{ Solution :-}}}$

→ 143² - 142²

→ ( 143 - 142 )( 143 + 142 )

→ 1 × 285

→ 285