1.

Factorise: \frac { 16 } { 9 } x ^ { 2 } - \frac { 1 } { 4 } y ^ { 2 }

Answer»

16x²/9 - 1y²/4

(4x/3)² - (y/2)²

(4x/3 - y/2) ( 4x/3 + y/2)



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