Mathematics for IGCSE & O level - Sketching Curves (Section 1 - No. 29)

What is the x-intercept(s) of the graph y = (x-1)(x+2)?

1, -2

-1, 2

1, 2

-1, -2

Spiegazione

(x-1)(x+2) means x=1 or x=-2

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