Question

using suitable identity
find the product (4z +5) (4z+3)​

Answer 1

Step-by-step explanation:

Suitable identity for given question is

${x}^{2} + x(a + b) + ab$

$(4 {z})^{2} + z(5 + 3) + 5 \times 3 \\ = 16 {z}^{2} + 8z + 15$