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write the following without using exponents and then simplify. product …

Question

write the following without using exponents and then simplify. product (multiply)

  1. $3^2 \cdot 3^2$
  2. $2 \cdot 2^3$
  3. $3^5 \cdot 3^2$
  4. $4^2 \cdot 4^2$
  5. $3x \cdot 4x$
  6. $4p^4 \cdot 4p^2$
  7. $2n^4 \cdot 4n$
  8. $2n^3 \cdot 2n^2$
  9. $3a^3b^2 \cdot a^3b^3$
  10. $4v^4 \cdot 3w^4v^3$

Explanation:

Step1: 展开指数项

13) $3^2 \cdot 3^2 = (3\times3)\cdot(3\times3)$
14) $2 \cdot 2^3 = 2\cdot(2\times2\times2)$
15) $3^3 \cdot 3^2 = (3\times3\times3)\cdot(3\times3)$
16) $4^2 \cdot 4^2 = (4\times4)\cdot(4\times4)$
17) $3x \cdot 4x = (3\times x)\cdot(4\times x)$
18) $4p^4 \cdot 4p^2 = (4\times p\times p\times p\times p)\cdot(4\times p\times p)$
19) $2n^4 \cdot 4n = (2\times n\times n\times n\times n)\cdot(4\times n)$
20) $2n^3 \cdot 2n^2 = (2\times n\times n\times n)\cdot(2\times n\times n)$
21) $3a^3b^2 \cdot a^3b^3 = (3\times a\times a\times a\times b\times b)\cdot(a\times a\times a\times b\times b\times b)$
22) $4v^4 \cdot 3u^4v^3 = (4\times v\times v\times v\times v)\cdot(3\times u\times u\times u\times u\times v\times v\times v)$

Step2: 合并同类项并计算

13) 计算乘积:$3\times3\times3\times3=81$
14) 计算乘积:$2\times2\times2\times2=16$
15) 计算乘积:$3\times3\times3\times3\times3=243$
16) 计算乘积:$4\times4\times4\times4=256$
17) 合并系数与变量:$3\times4\times x\times x=12x^2$
18) 合并系数与变量:$4\times4\times p^{4+2}=16p^6$
19) 合并系数与变量:$2\times4\times n^{4+1}=8n^5$
20) 合并系数与变量:$2\times2\times n^{3+2}=4n^5$
21) 合并系数与变量:$3\times a^{3+3}\times b^{2+3}=3a^6b^5$
22) 合并系数与变量:$4\times3\times u^4\times v^{4+3}=12u^4v^7$

Answer:

  1. $81$
  2. $16$
  3. $243$
  4. $256$
  5. $12x^2$
  6. $16p^6$
  7. $8n^5$
  8. $4n^5$
  9. $3a^6b^5$
  10. $12u^4v^7$