Respuesta:
A.-(4x -5y)² = (4x)²-2(4x.5y)+(5y)² =16x²-40xy+25y²
C.-(2x+3y)²= (2x)²+2(2x.3y)+(3y)²
=4x²+12xy+9x²
E.-(1/8a - 3/4b)²=(1/8)²-2(1/8a.3/4b)+(3/4)² =1/16 - 5/32ab + 9/16 (aquí la operación del medio se simplifica)
B.-(3x+2y)²= (3x)²+2(3x.2y)+(2y)²= 9x² + 12xy + 4x²
D.- (-12v + 7z)= (12v)²+2(-12.7z)+(7z)²= 144v² -168vz + 49z²
F.-(4/5j - 7/8a)² = (4/5)²-2(4/5.7/8)+(7/8)²=
Explicación paso a paso:
CoronitaAA
Fórmula (a+b)²= a²+b²+2ab
(a-b)²= a²+b²-2ab
a) 16x²+25y²-2(4x)(5y)= 16x²+25y²-40xy
b) 9x²+4y²+2(3x)(2y)= 9x²+4y²+ 12xy
c) 4x²+9y²+2(2x)(3y)= 4x²+9y²+12xy
d) 144v²+49z²-2(12v)(7z)= 144v²+49z²-168vz
e) a²/64+9b²/16-2(a/8(3b/4)= a²/64+9b²/16-3ab/16
f) 16j²/25+49a²/64-2(4j/5)(7a/8)= 16j²/25+49a²/64-7aj/5
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Respuesta:
A.-(4x -5y)² = (4x)²-2(4x.5y)+(5y)² =16x²-40xy+25y²
C.-(2x+3y)²= (2x)²+2(2x.3y)+(3y)²
=4x²+12xy+9x²
E.-(1/8a - 3/4b)²=(1/8)²-2(1/8a.3/4b)+(3/4)² =1/16 - 5/32ab + 9/16 (aquí la operación del medio se simplifica)
B.-(3x+2y)²= (3x)²+2(3x.2y)+(2y)²= 9x² + 12xy + 4x²
D.- (-12v + 7z)= (12v)²+2(-12.7z)+(7z)²= 144v² -168vz + 49z²
F.-(4/5j - 7/8a)² = (4/5)²-2(4/5.7/8)+(7/8)²=
Explicación paso a paso:
CoronitaAA
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Verified answer
Respuesta:
Fórmula (a+b)²= a²+b²+2ab
(a-b)²= a²+b²-2ab
a) 16x²+25y²-2(4x)(5y)= 16x²+25y²-40xy
b) 9x²+4y²+2(3x)(2y)= 9x²+4y²+ 12xy
c) 4x²+9y²+2(2x)(3y)= 4x²+9y²+12xy
d) 144v²+49z²-2(12v)(7z)= 144v²+49z²-168vz
e) a²/64+9b²/16-2(a/8(3b/4)= a²/64+9b²/16-3ab/16
f) 16j²/25+49a²/64-2(4j/5)(7a/8)= 16j²/25+49a²/64-7aj/5