factorize (5x+½)²-(2x-⅓)²
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Step-by-step explanation:
(5x+ ½)² - (2x-⅓) ²
Using (a+b)² = a² + b² +2ab
= (25x² + ¼ + 10x) - (4x² + 1/9 - 4x/3)
= 25x² - 4x² + ¼ - 1/9 + 10x + 4x/3
= 21x² + 5/36 + 34x/3
= 21x² * 36 + 5 + 34x*12/36
= 756x² + 396x + 5
Use middle term factorisaton. it would be done.
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