The roots of the equation x square + 2 x minus 35 hour
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Answer:
+5 or --7
Step-by-step explanation:
x^2 + 2x -- 35
= x^2 + 7x -- 5x -- 35
= x(x + 7) -- 5(x + 7)
= (x -- 5)(x + 7)
∴ x = +5 or --7
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