x²- 55 x + 750
middle term splitting
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Step-by-step explanation:
x^2-55x+750=0
x^2-30x-25x+750=0
x(x-30)-25(x-30)=0
(x-30)(x-25)=0
x-30=0 or x-25=0 x=30 or x=25
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