Question

7x + 4{x2 = (5x = 10)} - 3{2 - x3 = (3x2 + x)}​

Answer 1

Answer:

x2 + 15x - 6

Step-by-step explanation:

= 7x + 4 {x2 ÷ (5x/10)} – 3 {2 – x3 ÷ (3x2/x)}

= 7x + 4 {x2 ÷ x/2} – 3 {2 – x3 ÷ 3x} = 7x + 4 {x2 × 2/x} – 3{2 – ( x3/3x)}

= 7x + 8x – 6 + x2

= x2 + 15x - 6