गुणनफल ज्ञात कीजिए
(1) (2y + 5) (2y +5
(2) (x + 4) (x + 7)​

1 thought on “गुणनफल ज्ञात कीजिए<br />(1) (2y + 5) (2y +5<br />(2) (x + 4) (x + 7)​”

1. Step-by-step explanation:

   (1) (2y+5)²= (2y)²+(5)²+2(2y)(5)

   = 4y²+25+20y

   (2) (x+4)(x+7)= x(x+7) + 4(x+7)

   =(x²+7x)+(4x+28)

   =x²+11x+28

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