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What is the value of this expression if [tex]\(a=-7\)[/tex] and [tex]\(b=-3\)[/tex]?

[tex]\[a^3 - b^2\][/tex]

A. -12
B. -334
C. -352
D. -30


Sagot :

To solve the expression for [tex]\( a = -7 \)[/tex] and [tex]\( b = -3 \)[/tex], we need to compute [tex]\( a^3 - b^2 \)[/tex].

First, let's calculate [tex]\( a^3 \)[/tex]. Given [tex]\( a = -7 \)[/tex]:

[tex]\[ a^3 = (-7)^3 = -7 \times -7 \times -7 = -343 \][/tex]

Next, let's calculate [tex]\( b^2 \)[/tex]. Given [tex]\( b = -3 \)[/tex]:

[tex]\[ b^2 = (-3)^2 = (-3) \times (-3) = 9 \][/tex]

Now, we substitute these values back into the expression [tex]\( a^3 - b^2 \)[/tex]:

[tex]\[ a^3 - b^2 = -343 - 9 \][/tex]

Therefore,

[tex]\[ -343 - 9 = -352 \][/tex]

So, the value of the expression [tex]\( a^3 - b^2 \)[/tex] is:

C. [tex]\(-352\)[/tex]