Tentang perkalian! Tentukan hasil perkalian berikut dengan menggunakan sifat perkalian(x+a)(x+b) •42x48 •76x74 •84x86 •53x57 •68x62 •72x78 •85x85 •99x91 jawab pake cara
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-(42 x 48) =2'016 -(76 x 74) =5'624 -(84 x 86) =7'224 -(53 x 57) =3'021 -(68 x 62) =4'216 -(72 x 78) =5'616 -(85 x 85) =7'225 -(99 x 91) =9'009
=2'016
-(76 x 74)
=5'624
-(84 x 86)
=7'224
-(53 x 57)
=3'021
-(68 x 62)
=4'216
-(72 x 78)
=5'616
-(85 x 85)
=7'225
-(99 x 91)
=9'009