Question

م Let f(x) =X²-4 and g(x) = 3x+2 3f(x)+2g(x)=

Answer 1

Answer:

$\boxed{\sf 3f(x) + 2g(x)= 3 {x}^{2} + 3 x - 8}$

Given:

f(x) = x² - 4

g(x) = 3x + 2

To Find:

$\sf 3f(x) + 2g(x)$

Step-by-step explanation:

$\sf \implies 3f(x) + 2g(x) \\ \\ \sf \implies 3( {x}^{2} - 4) + 2(3x + 2) \\ \\ \sf \implies (3 \times {x}^{2} ) - (3 \times 4) + (2 \times 3x) + (2 \times 2) \\ \\ \sf \implies 3 {x}^{2} - 12 + 3x + 4 \\ \\ \sf \implies 3 {x}^{2} + 3x + ( - 12 + 4) \\ \\ \sf \implies 3 {x}^{2} + 3 x - 8$

Answer 2

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