Վարժություն 224
ա) (m + n)(m2 – mn + n2) = m3 + n3
բ) (q + p)(p2 – pq + q2) = q3 + p3
գ) (a + 1)(a2 – a + 1) = a3 + 13
դ) (2 + x)(4 – 2x + x2) = 23 + x3
ե) (p2 – 4p + 16)(p + 4) = p3 + 43
զ) (25 – 5m + m2)(5 + m) = 53 + m3
Վարժություն 228
ա) m3 + n3 = (m2 – mn + n2)(m + n)
բ) a3 + 1 = (a + 1)(a2 – a + 1)
գ) b3 + 8 = (b + 2)(b2 – 2b + 4)
դ) x3 + y6 = (x + y2)(x2 – xy2 +y4)
ե) p6 + q6 = (p2 + q2)(p4 – p2q2 + q4)
զ) m6 + n15 = (m2 + n5)(m4 – m2n5 + n10)
է) 27a3 + b3 = (3a + b)(9a2 – 3ab + b2)
ը) x3 + 64y3 = (x + 4y)(x2 – 4xy + 16y)
թ) c6 + 125d3 = (c4 – 5c2d + 25c2d)(c2 + 5d)
ժ) 8p6 + q12 = (2p2 + q4)(4p4 – 2p2q4 + q12)