Suriin ang malawak na saklaw ng mga paksa sa IDNStudy.com. Magtanong ng anumang bagay at makatanggap ng kumpleto at eksaktong sagot mula sa aming komunidad ng mga propesyonal.

find three consecutive odd integers if the sum of their squares is 56 more than three times the square of the smallest number.

Sagot :

x² + (X+2)² + (X+4)² = 3X²+ 56
X² + (X²+4X+4) + (X²+8X+16) = 3X² + 56
 Remove those parentheses, then combine like terms.
3x² +12x + 20 = 3x² + 56        transpose 3x² to the right the 20 to the left, it will be:
12x = 36                finally, divide both sides by 12, the result will be
x =3