Question

Multiply 5a,7b,1a,4b Want step wise

Answer 1

Step-by-step explanation:

5a*7b*1a*4b

= 5a * 1a * 7b * 4b (We can write 1a as a)

= 5a^2 * (7*4)b^2

= 5a^2 * 28b^2

= (28*5)a^2 * b^2

= 140a^2 b^2

Hope this helps...

Answer 2

Answer:

$140(ab)^{2}$

Step-by-step explanation:

$5a \times 7b \times1a \times 4b$

$5a\times 1a \times 7b\times4b$

$5a^{2}\times28a^{2}$

$140a^{2}b^{2}$

$140(ab)^{2}$