a4+b4=(a+b)(a-b)(a2+b2) give an suitable example This question has not been answered yet! Don't worry! You can check out similar questions with solutions below ... method: 17. 9x2 -6b2x -(a4 -b4)=0 18. 4x2 +4bx -(a2 -b2)=0 ... prove that a4 +b4 + c4 = 2( b2c2+ c2 a2 + a2 b2) { step by ... ... find the value of a4-b4 -1/a3+1/a3 a/b2+b/a2 1/a +1/b-2 FACTORISE A2(B4- C4) +B2(C4-A4) +C2(A4-B4)factorise following a2(b4-c4)+b2(c4-a4)+c2(a4-b4)
