Question

(8.36)^2-(1.37)^2using formula

Answer 1

Answer:

68.0127

Step-by-step explanation:

(8.36)^2-(1.37)^2

(8.36+1.37) (8.36-1.37)

9.73 × 6.99

68.0127

Answer 2

☘$\huge{\blue{\fbox{\fbox{\red{\mathcal{ANSWER}}}}}}$

Using Identity : -

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

${(8.36)}^{2} - {(1.37)}^{2} \\ \implies(8.36 + 1.37)(8.36 - 1.37) \\\implies(9.73)(6.99) \\ \implies68.0127$

☘ Answer : - 68.0127

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