Question

Multiply 3x8y9.2x5y8

Answer 1

Answer:

$6x^{13}y^{17}$

Step-by-step explanation:

We need to multiply

$3x^8y^9.2x^5y^8$

We know the exponent rule of multiplication:

$x^a y^b . x^cy^d = x^{a+c}y^{b+d}$

If the bases are same the powers are added.

So,

$=3*2 *x^8*x^5*y^9*y^8\\=^{8+5}y^{9+8}\\=6x^{13}y^{17}$

So, the answer is:

$6x^{13}y^{17}$