Question

What was the sulotion and answer of the given binomial (x+9) (x-2)?

Answer 1

Each term in the second bracket must be multiplied by each term in the first bracket. This can be achieved as follows.

⇒

(x+9)(x−2)

=

x(x−2)+9(x−2)

distribute the brackets.

=

x2−2x+9x−18

collect like terms.

=

x2+(−2+9)x−18

=x2+7x−18

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