Question

-\frac{4.99^{2}}{4}+3(4.99)+7 =\\ -\frac{4.999^{2}}{4}+3(4.999)+7 =

Explanation:

First Expression: $-\frac{4.99^2}{4} + 3(4.99) + 7$

Step 1: Calculate $4.99^2$

$4.99^2 = 4.99\times4.99 = 24.9001$

Step 2: Divide by 4 and apply the negative sign

$-\frac{24.9001}{4} = -6.225025$

Step 3: Calculate $3(4.99)$

$3\times4.99 = 14.97$

Step 4: Add all terms together

$-6.225025 + 14.97 + 7 = (-6.225025 + 14.97) + 7 = 8.744975 + 7 = 15.744975$

Second Expression: $-\frac{4.999^2}{4} + 3(4.999) + 7$

Step 1: Calculate $4.999^2$

$4.999^2 = 4.999\times4.999 = 24.990001$

Step 2: Divide by 4 and apply the negative sign

$-\frac{24.990001}{4} = -6.24750025$

Step 3: Calculate $3(4.999)$

$3\times4.999 = 14.997$

Step 4: Add all terms together

$-6.24750025 + 14.997 + 7 = (-6.24750025 + 14.997) + 7 = 8.74949975 + 7 = 15.74949975$

Answer:

s:
First expression: $\boldsymbol{15.744975}$
Second expression: $\boldsymbol{15.74949975}$