Math, asked by kinuhokage, 1 month ago

Expand using suitable identity:(5x+9) (5x -7)

Answers

Answered by vaishnavidutt1501232

1

Answer:

25x^2+10x-63

Step-by-step explanation:

(a+b)*(a+c)=a^2+a(b+c)+bc

(5x+9)*(5x-7)=25x^2+5x(9+-7)+9*-7

=25xsquare+10x-63

25x^2+10x-63

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