ujwalwcw123
ujwalwcw123 ujwalwcw123
  • 16-08-2021
  • Mathematics
contestada

find the product using formula (a+b) (a-b) = a square + b square a.61×59. Note: Solve by using formula.
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Respuesta :

ujalakhan18
ujalakhan18 ujalakhan18
  • 16-08-2021

Answer:

[tex]\huge\boxed{\sf 3599}[/tex]

Step-by-step explanation:

= 61 × 59

You can write 61 = 60 + 1 and 59 = 60 - 1

Hence,

= ( 60 + 1 ) ( 60 - 1 )

According to the formula:

[tex](a+b)(a-b) = a^2-b^2[/tex]

= (60)² - (1)²

= 3600 - 1

= 3599

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Peace!

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