Question

plz answer it crrctly either it will be reported with all ur questions....and right answer will get brain list​

Answer 1

Step-by-step explanation:

1) x^2-(-3-7)x+(-3)×(-7)

=x^2+10x+21

2) here a=7 & d=6 n=19

t19= a+(n-1)d

=7+(19-1)×6

=7+18×6

=7+106

=113

Answer 2

Answer:

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