Question

-3a(a^2-10a+25)= expand it and it has to be in polynomial form

Answer 1

Answer:

$- 3 {a}^{3} + 30 {a}^{2} - 75a$

Step-by-step explanation:

$- 3a( {a}^{2} - 10a + 25)$

Multiply each term in the parentheses by -3a

$= - 3a \times {a}^{2} - 3a \times ( - 10a) - 3a \times 25$

Calculate the product

$= - 3 {a}^{3} - 3a \times ( - 10a) - 3a \times 25$

Multiplying two negatives equals a positive $( - ) \times ( - ) \ = ( + )$

$= - 3 {a}^{3} + 3a \times 10a - 3a \times 25$

Calculate the product

$= - 3 {a}^{2} + 30 {a}^{2} - 75a$

Hope this helps...

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