Question

plzzzzzzzzzzz answer this 2 questions.
no.4 and no.5​

Answer 1

Answer:

no.4:

a)(102)^3=1061208

b)(105)^3=1157625

c)(1001)^3=1003003001

d)(99)^3=970299

no.5:

(a-b+c)^2=a^2+b^2+c^2-2ab-2bc+2ac

(a-b-c)^2=a^2+b^2-c^2-2ab+2bc-2ac

(5x+y+2z)^2=25x^2+y^2+4z^2+10xy+4yz+ 20xz

(a-2b-3c)^2=a^2+4b^2+9c^2-4ab-3bc+6ac

(2x-y+3z)^2=4x^2+y^2+9z^2-4xy-6yz+12xz

(5a+b-3c)^2=25a^2+b^2+9c^2+10ab-6bc- 30ac

(-a+3b+7c)^2=a^2+9b^2+49c^2-6ab+42bc- 14ac

(2x+3y+1)^2=4x^2+9y^2+12xy+4x+6y+1

hope it helps you...