Question

Which expression is the factored equivalent of x2 - 7x + 10?

(x + 5)(x + 2)
(x - 5)(x + 2)
(x - 5)(x - 2)
(x - 10)(x - 1)

Answer 1

\[\huge x^2-5x-2x+10=0\]

Answer 2

\[\huge x(x-5)-2(x-5)=>(x-2)(x-5)\]

Answer 3

\[\huge C\]

Answer 4

The answer is the third choice, you do it by sum and product.

Answer 5

welll we know it wont be the 2nd option...because it would make the 10 negative

we also know between the 5 and the 2...has to add to be -7...whats the only option to make 5 and 2 = -7? both 5 and 2 must be negative....

so

(x-5)(x-2)

Answer 6

(x - 5)(x - 2)