Question

(4p - 5p) square using identity​

Answer 1

which identity

I know only trigonometry identities

Answer 2

Step-by-step explanation:

${(4p - 5p)}^{2}$

${(4p)}^{2} + {(5p)}^{2} - 2 \times 4p \times 5p$

${16p}^{2} + {25p}^{2} - 40p$

${41p}^{2} - 40p$