Question

допоможить пжпжпжпжжп прощууу даю сто баллов плашууууу

Answer 1

Ответ:

a) \((+4)(y-4)-(-6)(y+6)\) при \(y = 99.999\):

\[ (+4)(99.999 - 4) - (-6)(99.999 + 6) \]

\[ (4)(95.999) - (-6)(105.999) \]

\[ 383.996 + 635.994 \]

\[ 1019.99 \]

6) \((b-15)(b+15)-(b-25)(b + 25)\) при \(b = 11110.111\):

\[ (11110.111 - 15)(11110.111 + 15) - (11110.111 - 25)(11110.111 + 25) \]

\[ (11095.111)(11125.111) - (11085.111)(11135.111) \]

\[ 123651903.987 - 123497961.011 \]

\[ 153942.976 \]

B) \((x-2)(x+2)-x(x - 5)\) при \(x = 44.8\):

\[ (44.8 - 2)(44.8 + 2) - 44.8(44.8 - 5) \]

\[ (42.8)(46.8) - 44.8(39.8) \]

\[ 1996.64 - 1782.4 \]

\[ 214.24 \]

г) \(m(m-8)+(7m)(7+m)\) при \(m = 5.5\):

\[ 5.5(5.5 - 8) + (7 \times 5.5)(7 + 5.5) \]

\[ 5.5(-2.5) + (38.5)(12.5) \]

\[ -13.75 + 481.25 \]

\[ 467.5 \]