Question

ayudaaaa doy corona y sigo
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Answer 1

2.- a²+3a-7a-21= a²-4a-21
3.- b² - 3b+7b-21= b² +4b-21
4.- p⁴-5p²+10p²-50= p⁴+5p²-50

Answer 2

1. (x+7) (x+3) = x² + x(7+3) + 21 = x² + 10x + 21

2. (a-7) (a+3) = (a)² + a ((-7)+(3)) + (-7)(3) = a² -4a - 21

3. (b+7) (b-3) = (b)² + b ((7) (-3)) + 7 (-3) = b² + 4b - 21

4. (p²+10) (p²-5) = (p)⁴ + p ((-5) (10)) + (-10)(5) =

p² + 5² -50

*****