Factorise : (0.7)^2 - (0.3)^2

(0.7) 2 \- (0.3) 2 Using the formula [∵ (x 2 \- y 2 ) = (x \+ y)(x \- y)] = (0.7 \+ 0.3)(0.7 \- 0.3) = (1.0) x (0.4) = 0.4 Hence,(0.7) 2 \- (0.3) 2 = 0.4

Mathematics

Factorise :
(0.7)² - (0.3)²

Factorisation

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Answer

(0.7)² - (0.3)²

Using the formula

[∵ (x² - y²) = (x + y)(x - y)]

= (0.7 + 0.3)(0.7 - 0.3)

= (1.0) x (0.4)

= 0.4

Hence,(0.7)² - (0.3)² = 0.4

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Mathematics

Factorise :
(0.7)² - (0.3)²

Factorisation

Answer

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Factorise :(0.7)2 - (0.3)2

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