Question

Find the value of 4m²n²×7m³,when m = -1/2 & n =4
Please I want the whole method or step by step explanation​

Answer 1

Step-by-step explanation:

m = -1/2 & n =4

$4m²n²×7m³ \\ = 4 \times ( - \frac{1}{2 }){}^{2} \times ( { 4})^{2} \times 7 ({ - \frac{1}{2} })^{3} \\ = 4 \times \frac{1 }{4} \times 16 \times 7 \times( - \frac{1}{8} ) \\ = - 14$