Question

simplify : (-7)power 2 ×3power3 ÷(-3)power4​

Answer 1

Answer:

49/3

Step-by-step explanation:

-7×-7= 49

3×3×3= 27

-3×-3×-3×-3=81

49×27×1/81.

49×1/3

49/3

Answer 2

Answer:

(2)

3

×(a)

3

×(5a

4

)=40a

7

Step-by-step explanation:

Given : Expression (2)^3\times (a)^3\times (5a^4)(2)

3

×(a)

3

×(5a

4

)

To find : Simplify the expression ?

Solution :

Expression (2)^3\times (a)^3\times (5a^4)(2)

3

×(a)

3

×(5a

4

)

Open up the bracket first,

=8\times a^3\times 5a^4=8×a

3

×5a

4

Applying exponent rule, a^b\times a^c=a^{b+c}a

b

×a

c

=a

b+c

=40\times a^{3+4}=40×a

3+4

=40\times a^{7}=40×a

7

=40a^{7}=40a

7

Therefore, (2)^3\times (a)^3\times (5a^4)=40a^{7}(2)

3

×(a)

3

×(5a

4

)=40a

7

#Learn more

X pow (a+b) . x pow(b+c). x pow (c+a)/ (x pow(a). x pow(b) . x pow(c)) pow(2)=?

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