Question

If 7m+2/3 = -11, then find the value of 2m3 + 10m2 + 4m - 3
(This a linear equation question)​

Answer 1

Step-by-step explanation:

firstly

7m + 2/3 = - 11

7m = - 11 - 2/3

7m = - 35/3

m = -35/3 × 7

m = -5/3

now,

2m³ + 10m² + 4m - 3

$2 \times ( \frac{ - 5}{3} ) {}^{3} + 10 \times ( \frac{ - 5}{3} ) {}^{2} + 4 \times ( \frac{ - 5}{3} ) - 3 \\ 2 \times \frac{ - 125}{27} + 10 \times \frac{25}{9} + 4 \times \frac{ - 5}{3} - 3 \\ \frac{ - 250}{27} + \frac{250 }{9} - \frac{20}{3} - 3 \\ \frac{ - 250 + 750 - 180 - 81}{27} \\ \frac{750 - 511}{27} \\ \frac{239}{27} \: \: ans$