Question

Fill in the blanks:​

(ix) $-4x\times 5xy\times 3z=\underset{–}{}$

Answer 1

To find: $-4x\times 5xy\times 3z$

The multiplication of monomials can be performed by multiplication of their coeffficients and literals.

$\therefore -4x\times 5xy\times 3z$
$=(-4\times 5\times 3)\times (x\times xy\times z)$
$=-60\times x^{1+1}\times y\times z$
$=-60x^{2}yz$

Hence, $-4x\times 5xy\times 3z=-60x^{2}yz$.
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