Hi All help with this one please is it correct: (5-2x)² (5-2x) (5-2x) 5 × 5, 5 × ¯2x, ¯2x × 5, ¯2x × ¯2x 10 + ¯10x + ¯10x + 4x 10 + 20x + 4x = 10 + 24x Thanks
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Originally Posted by squidge Hi All help with this one please is it correct: (5-2x)² (5-2x) (5-2x) 5 × 5, 5 × ¯2x, ¯2x × 5, ¯2x × ¯2x 10 + ¯10x + ¯10x + 4x 10 + 20x + 4x = 10 + 24x Thanks Hello, don't forget that $\displaystyle 2x \cdot 2x = 4x^2$ The correct result should be: $\displaystyle (5-2x)^2 = 25 - 20x + 4x^2$
Thanks for your help again
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