Answer:
addi $t0, $zero, 12
addi $t1, $zero, 21
addi $t2, $zero, 32
addi $t3, $zero, 3
mul $t3, $t3, $t0
mul $t3, $t3, $t0
addi $v, $zero, 10
mul $v, $v, $t1
addi $w, $zero, 5
mul $w, $w, $t2
add $a0, $t3, $v
add $a0, $a0, $w
addi $v0, $zero, 1
syscall
Explanation: