Posted in ՀԱՆՐԱՀԱՇԻՎ

Հանրահաշիվ (169, 172, 172, 175, 179)

ա) (m+n)(m+n)=m2+mn+nm+n2=m2+2mn+n2
բ) (2+x)(2+x)=4+2x+2x+x2=x2+4+4x
գ) (y+4)(y+4)=y2+4y+4y+8=y2+8y+8
դ) (1+p)(1+p)=1+1p+1p+p2=1+2p+p2
ե) (2x+1)(2x+1)=4x2+2x+2x+1=4x2+4x+1
զ) (2+3a)(2+3a)=4+6a+6a+9a2=4+12a+9a2
է) (3m+5n)(3m+5n)=3m2+15mn+15mn+25n2=3m2+30mn+25n2
ը) (3x+4y)(3x+4y)=9x2+12xy+12xy+16y2=9x2+24xy+16y2

ա) (1/2+a)(1/2+a)
բ) (x+1/3)(x+1/3)
գ) (m+0,2)(m+0,2)
դ) (1,1+p)(1,1+p)
ե) (1/2a+2/3b)(1/2a+2/3b)
զ) (3/4x+1/5y)(3/4x+1/5y)
է) (0,2m+2,1n)(0,2m+2,1n)
ը) (0,4p+0,3q)(0,4p+0,3q)
թ) (3/5ab+1/2c2)(3/5ab+1/2c2)

ա) (x+y)2
բ) (a+2b)2
գ) (3m+n)2
դ) (4p+5q)2
ե) (x+1)2
զ) (3+a)2
է) (4+p)2
ը) (2m+3n)2
թ) (x2+y3)2
ժ) (a3+b3)2

ա) Այո
բ) Ոչ
գ) Ոչ
դ) Այո

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