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Simplify the following algebraic expressions: 1) (9p8q5r2)/(3p8q5r2) 2) 2(m3)0 - (2m3)0 3) (-4)2 x (2)2 + (-3)0.

Mathematics

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Here are the solutions to the problems.

1) Simplify 9p8q5r23p8q5r2\frac{9p^8q^5r^2}{3p^8q^5r^2}.

  1. Separate the coefficients and variables.

    9p8q5r23p8q5r2=93×p8p8×q5q5×r2r2\frac{9p^8q^5r^2}{3p^8q^5r^2} = \frac{9}{3} \times \frac{p^8}{p^8} \times \frac{q^5}{q^5} \times \frac{r^2}{r^2}
  2. Simplify each part.

    93=3\frac{9}{3} = 3 p8p8=p8−8=p0=1\frac{p^8}{p^8} = p^{8-8} = p^0 = 1 q5q5=q5−5=q0=1\frac{q^5}{q^5} = q^{5-5} = q^0 = 1 r2r2=r2−2=r0=1\frac{r^2}{r^2} = r^{2-2} = r^0 = 1
  3. Multiply the simplified parts.

    3×1×1×1=33 \times 1 \times 1 \times 1 = 3

    The simplified expression is 3\boxed{3}.

    2) Simplify 2(m3)0−(2m3)02(m^3)^0 - (2m^3)^0.

  4. Apply the exponent rule (ab)0=1(a^b)^0 = 1 and a0=1a^0 = 1.

    For the first term, (m3)0=1(m^3)^0 = 1. So, 2(m3)0=2×1=22(m^3)^0 = 2 \times 1 = 2.
    For the second term, (2m3)0=1(2m^3)^0 = 1 because the entire term inside the parentheses is raised to the power of 0.

  5. Substitute the simplified terms back into the expression.

    2−12 - 1
  6. Perform the subtraction.

    2−1=12 - 1 = 1

    The simplified expression is 1\boxed{1}.

    3) Simplify (−4)2×(2)2+(−3)0(-4)^2 \times (2)^2 + (-3)^0.

  7. Evaluate each term.

    (−4)2=(−4)×(−4)=16(-4)^2 = (-4) \times (-4) = 16 (2)2=2×2=4(2)^2 = 2 \times 2 = 4 (−3)0=1(Any non-zero number raised to the power of 0 is 1)(-3)^0 = 1 \quad (\text{Any non-zero number raised to the power of 0 is 1})
  8. Substitute the values back into the expression.

    16×4+116 \times 4 + 1
  9. Perform the multiplication.

    16×4=6416 \times 4 = 64
  10. Perform the addition.

    64+1=6564 + 1 = 65

    The simplified expression is 65\boxed{65}.

    4) Simplify (31260xy)0×(5x2)(31260xy)^0 \times (5x^2).

  11. Apply the exponent rule a0=1a^0 = 1.

    For the first term, (31260xy)0=1(31260xy)^0 = 1 because the entire term inside the parentheses is raised to the power of 0.

  12. Substitute the simplified term back into the expression.

    1×(5x2)1 \times (5x^2)
  13. Perform the multiplication.

    1×5x2=5x21 \times 5x^2 = 5x^2

    The simplified expression is 5x2\boxed{5x^2}.

    5) Simplify 50x8y3z225x8y3z2\frac{50x^8y^3z^2}{25x^8y^3z^2}.

  14. Separate the coefficients and variables.

    50x8y3z225x8y3z2=5025×x8x8×y3y3×z2z2\frac{50x^8y^3z^2}{25x^8y^3z^2} = \frac{50}{25} \times \frac{x^8}{x^8} \times \frac{y^3}{y^3} \times \frac{z^2}{z^2}
  15. Simplify each part.

    5025=2\frac{50}{25} = 2 x8x8=x8−8=x0=1\frac{x^8}{x^8} = x^{8-8} = x^0 = 1 y3y3=y3−3=y0=1\frac{y^3}{y^3} = y^{3-3} = y^0 = 1 z2z2=z2−2=z0=1\frac{z^2}{z^2} = z^{2-2} = z^0 = 1
  16. Multiply the simplified parts.

    2×1×1×1=22 \times 1 \times 1 \times 1 = 2

    The simplified expression is 2\boxed{2}.

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