al jabar tolong di jawab dengan cara nya 1. tentukan nilai dari a.7x^^ +2y -5x^^ - 8y b. 8 (3p^^^-3Q) -3(2P^^^+ 2Q) C.(5x+2y) (2x -5y) d.(10p^^Q+2pQ^^)÷2pQ ket

a. 7x²+2y-5x²-8y
= 7x²-5x²+2y-8y
= 2x²-6y

b. 8(3p³-3q) - 3(2p³+2q)
= 24p³-24q-6p³-6q
= 24p³-6p³-24q-6q
= 18p³-30q

c. (5x+2y)(2x-5y)
= 10x²-25xy+4xy-10y²
= 10x²-21xy-10y²

d. (10p²q+2pq²) : 2pq
= 2pq(5p+q) : 2pq
= 5p+q