Question

Simplify (x + 2) (x + 10) - (x - 5)(x - 4). Find the numerical value of this
expression when x = -3.
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Answer 1

Step-by-step explanation:

this should be clr to you

Answer 2

(-3+2)*(-3+10)-(-3-5)*(-3-4)

= (-1*(-7))-(-8*1)

= -7 - (-8)

= 1