Question

Simplify :- 10x2 – 3{y2-(x2 - z2)} – 2{(x2 – y2+ z2) – z2 + y2}

Answer 1

Answer:

$8x^{2} -3y^{2}x^{2} -3y^{2} z^{2}$

Step-by-step explanation:

$10x^{2} -3[y^{2}(x^{2} -z^{2} ) ]-2[(x^{2} -y^{2}+z^{2} )-z^{2}+y^{2} ]\\=>10x^{2} -3(y^{2}x^{2} -y^{2} z^{2} )-2(x^{2} -y^{2}+z^{2} -z^{2}+y^{2} )\\=>10x^{2} -3y^{2}x^{2} -3y^{2} z^{2}-2x^{2}\\=>8x^{2} -3y^{2}x^{2} -3y^{2} z^{2}$