Question

what is these questions answer ​

Answer 1

Using identity :( x+a )(x+b)= x²+(a+b)x+ab(x-7)

(x+4) (x+7)

=x²+(7+4) × x + 7×4

=x² +11x+28

This is your answer, hope it helps...

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Answer 2

Answer:

x²-11x+28

Step-by-step explanation:

(x-7)(x-4)

x²+[-7+(-4)]x+[(-7)(-4)]

x²+(-11)x+(+28)

x²-11x+28

hope it will help you.