Question

A. (a+7)pngkat2 + (a-5)pngkat2
b. (p-8)pngkat2 - (p+6)pngkat2
c. (2c+3)pngkat2 + (3c-4)pngkat2

Answer 1

A. ( a+ 7)² + (a-5)²
=(a²+ 14 a + 49 )+( a² - 10 a + 25)
= a²+a² + 14a-10a +49+25
= 2a²+4a+74
=a²+ 2a+37
 
B. (p-8)² - (p+6)²
=p²-16p+64 - p²+12p+36
= 2p²-4p+100
=p²-2p+50

C.(2c+3)² + (3c-4)²
=4c²+12c+6 +9c²-24c+6
=13c²-12c+12